Premium LED High Bay

The ULB is a high performance, versatile general area LED high bay available in a wide variety of sizes, lumen packages and control options. Diffuser lenses are available to minimize glare and improve aesthetics. The ULB's housing and LED tray is precision brake formed from aluminum and pre-painted with a highly durable, highly reflective white finish. Three color options are available: White (standard), Matte Black and Metallic Silver. LED boards are available with conformal coating. Several control options - including IoT-compatible sensors - can be incorporated into the ULB (click here for more info on ULB controls). A "heavy duty" version of the ULB - with optional pendant and surface mounting options - is available here. The ULB is assembled in the USA.

  • Applications: Suitable for most commercial, industrial and institutional applications - retail, warehouse, manufacturing, cold/freezer storage
  • Lumen Output: From around 9,000 lm in ULB2 to just under 52,000 in the ULB4W VH lumen package. The ULB4W SH ("Super High") package ranges from ~64,000 lm up to just over 68,000
  • Max Lumens Per Watt: 175.2
  • Size Options: Available in 4-foot and 2-foot, standard and wide widths
  • Finish Options: White (standard), Matte Black, Metallic Silver
  • Predicted L70 Lifetime: Up to 189,000 hours (calculated)
  • Warranty: 5 year limited system warranty. 10-year extended warranty available on specific models
  • Certifications: UL 1598 listed for US and Canada, suitable for damp locations. DesignLights Consortium qualified on specific configurations. DLC Premium listing for ULB 4W SH UV 840.
  • Assembled in the USA: BAA compliant options also available
    The ULB difference: This customer replaced a 7-year-old T5HO fluorescent high bay system with the ULB4HIHEUV850. The difference - a dramatic reduction in energy usage (from 350W down to 174), and double the amount of light output (from 25 foot-candles to 50).

All the control you need

    Maximize the savings potential of your ULB with one of our many control options. The Wattstopper FSP sensor equips your ULB with multi-level control based on motion and/or daylight contribution. Rated for both wet and cold locations, every FSP comes pre-installed and pre-wired on the end cap. Three different lenses are available, tailored for the ideal detection area and mounting height. All parameters can be adjusted from the floor via a wireless configuration tool (the FSIR-100 – sold separately).
    The ULB is also available with an optional on/off occupancy sensor (option "OS"). With the Leviton OSFHU-ITW (or an equivalent), each individual ULB can be controlled based on occupancy in its detection zone. For added energy savings through daylight harvesting, an occupancy sensor with photocell (option "OSP") is available. The OSP turns the luminaire on or off based on occupancy or available natural light.
Sensor options for site
    Clockwise from top: the Wattstopper FSP-211B with an L7 lens installed on a ULB; the FSIR-100 wireless configuration tool for the FSP sensor (sold separately); the Leviton OSFHU-ITW occupancy sensor; the Leviton OSFHP-ITW occupancy sensor with photocell.
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IoT compatibility

    We offer more robust network control options and Internet of Things (IoT) compatibility with products from Magnum Energy Solutions and Leviton. Contact us for more info. Also, if there's another control system you're looking for - such as Nedap, Daintree, or another IoT-based system - just contact us. We can incorporate it.
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ULB 2-footer, wide, with Matte Black finish
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ULB 2-footer, wide, with Matte Black finish
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ULB 2-footer, wide, with Matte Black finish
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ULB 2-footer, wide, with Matte Black finish
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ULB 2-footer, wide, with Matte Black finish (back)
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ULB 2-footer, wide, with Metallic Silver finish
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ULB 2-footer, wide, with Metallic Silver finish
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ULB 2-footer, wide, with Metallic Silver finish
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ULB 2-footer, wide, with Metallic Silver finish (back)
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ULB 2-footer, wide, with Metallic Silver finish (back)
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ULB 4-footer
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ULB 4-footer
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ULB 4-footer
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ULB 4-footer with diffuser lenses
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ULB 4-footer with diffuser lenses
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ULB 2-footer
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ULB 2-footer with diffuser lenses
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ULB 2-footer HEH with diffuser lenses
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ULB 2-footer, wide version
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ULB 4-footer, wide version, with diffuser lenses
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ULB 2-footer, wide version, with diffuser lenses

ULB Performance Chart

Catalog #
QPL/UL Reference #Size/WidthLumensWattsLPWCRI / Color TempVoltages AvailableDLC ListedWarrantyPredicted L70 LifetimeEquivalency*
ULB 2 LW UV 835
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PBL 2 LW UV 8352-foot/Standard904172125.180 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 150W MH, 2-lamp T5HO, or 3-lamp T8 with HBF in an open high bay
ULB 2 LW UV 840
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PBL 2 LW UV 8402-foot/Standard934072129.280 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 150W MH, 2-lamp T5HO, or 3-lamp T8 with HBF in an open high bay
ULB 2 LW UV 850
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PBL 2 LW UV 8502-foot/Standard962072133.180 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 150W MH, 2-lamp T5HO, or 3-lamp T8 with HBF in an open high bay
ULB 2 MD UV 835
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PBL 2 MD UV 8352-foot/Standard1142287131.380 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay
ULB 2 MD UV 840
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PBL 2 MD UV 8402-foot/Standard1179987135.680 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay
ULB 2 MD UV 850
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PBL 2 MD UV 8502-foot/Standard1215387139.780 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay
ULB 2W MH UV 835

PBL 2W MH UV 8352-foot/Wide13432104129.280 CRI / 3500K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 2W MH UV 840

PBL 2W MH UV 8402-foot/Wide13876104133.480 CRI / 4000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 2W MH UV 850

PBL 2W MH UV 8502-foot/Wide14292104137.480 CRI / 5000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 2W HI UV 835

PBL 2W HI UV 8352-foot/Wide17889119150.380 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 2W HI UV 840

PBL 2W HI UV 8402-foot/Wide18385119154.480 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 2W HI UV 850

PBL 2W HI UV 8502-foot/Wide18881119158.280 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 SL UV 835

PBL 4 SL UV 8354-foot/Standard1199886139.580 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 SL UV 840

PBL 4 SL UV 8404-foot/Standard1239486144.180 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 SL UV 850

PBL 4 SL UV 8504-foot/Standard1276686148.480 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 VL UV 835

PBL 4 VL UV 8354-foot/Standard13982104134.480 CRI / 3500K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 VL UV 840

PBL 4 VL UV 840 4-foot/Standard14444104138.980 CRI / 4000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 VL UV 850

PBL 4 VL UV 8504-foot/Standard14877104143.180 CRI / 5000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 LW UV 835

PBL 4 LW UV 8354-foot/Standard17193136126.480 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 LW UV 840

PBL 4 LW UV 8404-foot/Standard17761136130.680 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 LW UV 850

PBL 4 LW UV 8504-foot/Standard18294136134.580 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 MD UV 835
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PBL 4 MD UV 8354-foot/Standard20866155134.680 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 7-lamp T8 with HBF in an open high bay
ULB 4 MD UV 840
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PBL 4 MD UV 8404-foot/Standard21556155139.180 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 7-lamp T8 with HBF in an open high bay
ULB 4 MD UV 850
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PBL 4 MD UV 8504-foot/Standard22203155143.280 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 7-lamp T8 with HBF in an open high bay
ULB 4 HI UV 835
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PBL 4 HI UV 8354-foot/Standard22943174131.980 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W PSMH, 5-lamp T5HO, or 8-lamp T8 with HBF in an open high bay
ULB 4 HI UV 840
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PBL 4 HI UV 8404-foot/Standard23701174136.280 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W PSMH, 5-lamp T5HO, or 8-lamp T8 with HBF in an open high bay
ULB 4 HI UV 850
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PBL 4 HI UV 8504-foot/Standard24412174140.380 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W PSMH, 5-lamp T5HO, or 8-lamp T8 with HBF in an open high bay
ULB 4W LW UV 835

PBL 4W LW UV 8354-foot/Wide29538189156.380 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 7-lamp T5HO, or 10-lamp T8 with HBF in an open high bay
ULB 4W LW UV 840

PBL 4W LW UV 8404-foot/Wide30358189160.680 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 7-lamp T5HO, or 10-lamp T8 with HBF in an open high bay
ULB 4W LW UV 850

PBL 4W LW UV 8504-foot/Wide31178189165.180 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 7-lamp T5HO, or 10-lamp T8 with HBF in an open high bay
ULB 4W MD UV 835

PBL 4W MD UV 8354-foot/Wide34628226153.280 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 8-lamp T5HO, or 12-lamp T8 with HBF in an open high bay
ULB 4W MD UV 840

PBL 4W MD UV 8404-foot/Wide35589226157.480 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 8-lamp T5HO, or 12-lamp T8 with HBF in an open high bay
ULB 4W MD UV 850

PBL 4W MD UV 8504-foot/Wide36550226161.780 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 8-lamp T5HO, or 12-lamp T8 with HBF in an open high bay
ULB 4W HI UV 835

PBL 4W HI UV 8354-foot/Wide38979261149.380 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 750W PSMH, or 9-lamp T5HO in an open high bay
ULB 4W HI UV 840

PBL 4W HI UV 8404-foot/Wide40061261153.480 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 750W PSMH, or 9-lamp T5HO in an open high bay
ULB 4W HI UV 850

PBL 4W HI UV 8504-foot/Wide41143261157.680 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 750W PSMH, or 9-lamp T5HO in an open high bay
ULB 4W VH UV 835
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PBL 4W VH UV 8354-foot/Wide50727337150.580 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 1000W MH, or 12-lamp T5HO in an open high bay
ULB 4W VH UV 840
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PBL 4W VH UV 8404-foot/Wide52135337154.780 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 1000W MH, or 12-lamp T5HO in an open high bay
ULB 4W VH UV 850
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PBL 4W VH UV 8504-foot/Wide53543337158.980 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 1000W MH, or 12-lamp T5HO in an open high bay
ULB 4W SH UV 835

PBL 4W SH UV 8354-foot/Wide64345390165.180 CRI / 3500K120-277V, 347V, 480VNo5 yearsUp to 189,000 hrs (calculated)1000W PS MH
ULB 4W SH UV 840

PBL 4W SH UV 8404-foot/Wide66472390170.680 CRI / 4000K120-277V, 347V, 480VYes - Premium5 yearsUp to 189,000 hrs (calculated)1000W PS MH
ULB 4W SH UV 850

PBL 4W SH UV 8504-foot/Wide68267390175.280 CRI / 5000K120-277V, 347V, 480VNo5 yearsUp to 189,000 hrs (calculated)1000W PS MH
ULB 2 LW HE UV 835
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PBL 2 LW HE UV 8352-foot/Standard880567131.480 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 150W MH, 2-lamp T5HO, or 3-lamp T8 with HBF in an open high bay
ULB 2 LW HE UV 840
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PBL 2 LW HE UV 8402-foot/Standard909667135.880 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 150W MH, 2-lamp T5HO, or 3-lamp T8 with HBF in an open high bay
ULB 2 LW HE UV 850
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PBL 2 LW HE UV 8502-foot/Standard936967139.880 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)Replaces 150W MH, 2-lamp T5HO, or 3-lamp T8 with HBF in an open high bay
ULB 2 MD HE UV 835
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PBL 2 MD HE UV 8352-foot/Standard1155385135.980 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay
ULB 2 MD HE UV 840
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PBL 2 MD HE UV 8402-foot/Standard1193485140.480 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay
ULB 2 MD HE UV 850
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PBL 2 MD HE UV 8502-foot/Standard1229285144.680 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay
ULB 2W MH HE UV 835

PBL 2W MH HE UV 8352-foot/Wide13766100137.780 CRI / 3500K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 2W MH HE UV 840

PBL 2W MH HE UV 8402-foot/Wide14221100142.280 CRI / 4000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 2W MH HE UV 850

PBL 2W MH HE UV 8502-foot/Wide14648100146.580 CRI / 5000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 2W HI HE UV 835
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PBL 2W HI HE UV 8352-foot/Wide17003106160.480 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 2W HI HE UV 840
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PBL 2W HI HE UV 8402-foot/Wide17475106164.980 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 2W HI HE UV 850
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PBL 2W HI HE UV 8502-foot/Wide17947106169.380 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 SL HE UV 835

PBL 4 SL HE UV 8354-foot/Standard1201884143.180 CRI / 3500K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 SL HE UV 840

PBL 4 SL HE UV 8404-foot/Standard1241684147.880 CRI / 4000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 SL HE UV 850

PBL 4 SL HE UV 8504-foot/Standard1278884152.280 CRI / 5000K120-277V, 347V, 480VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 VL HE UV 835

PBL 4 VL HE UV 8354-foot/Standard13905100139.180 CRI / 3500K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 VL HE UV 840

PBL 4 VL HE UV 8404-foot/Standard14365100143.780 CRI / 4000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 VL HE UV 850

PBL 4 VL HE UV 8504-foot/Standard1479610014880 CRI / 5000K120-277VYes5 yearsUp to 189,000 hrs (calculated)
ULB 4 LW HE UV 835

PBL 4 LW HE UV 8354-foot/Standard15913118134.980 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 LW HE UV 840

PBL 4 LW HE UV 8404-foot/Standard16439118139.380 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 LW HE UV 850

PBL 4 LW HE UV 8504-foot/Standard16932118143.580 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 6-lamp T8 with HBF in an open high bay
ULB 4 MD HE UV 835
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PBL 4 MD HE UV 8354-foot/Standard19697140140.780 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 7-lamp T8 with HBF in an open high bay
ULB 4 MD HE UV 840
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PBL 4 MD HE UV 8404-foot/Standard20349140145.380 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 7-lamp T8 with HBF in an open high bay
ULB 4 MD HE UV 850
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PBL 4 MD HE UV 8504-foot/Standard20959140149.780 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W MH, 4-lamp T5HO, or 7-lamp T8 with HBF in an open high bay
ULB 4 HI HE UV 835
Image
PBL 4 HI HE UV 8354-foot/Standard23543174135.380 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W PSMH, 6-lamp T5HO, or 9-lamp T8 with HBF in an open high bay
ULB 4 HI HE UV 840
Image
PBL 4 HI HE UV 8404-foot/Standard24322174139.880 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W PSMH, 6-lamp T5HO, or 9-lamp T8 with HBF in an open high bay
ULB 4 HI HE UV 850
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PBL 4 HI HE UV 8504-foot/Standard2505117414480 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 400W PSMH, 6-lamp T5HO, or 9-lamp T8 with HBF in an open high bay
ULB 4W LW HE UV 835
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PBL 4W LW HE UV 8354-foot/Wide27935172162.480 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 7-lamp T5HO, or 10-lamp T8 with HBF in an open high bay
ULB 4W LW HE UV 840
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PBL 4W LW HE UV 8404-foot/Wide28710172166.980 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 7-lamp T5HO, or 10-lamp T8 with HBF in an open high bay
ULB 4W LW HE UV 850
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PBL 4W LW HE UV 8504-foot/Wide29485172171.480 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 7-lamp T5HO, or 10-lamp T8 with HBF in an open high bay
ULB 4W MD HE UV 835
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PBL 4W MD HE UV 8354-foot/Wide34279214160.280 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 8-lamp T5HO, or 12-lamp T8 with HBF in an open high bay
ULB 4W MD HE UV 840
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PBL 4W MD HE UV 8404-foot/Wide35230214164.680 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 8-lamp T5HO, or 12-lamp T8 with HBF in an open high bay
ULB 4W MD HE UV 850

PBL 4W MD HE UV 8504-foot/Wide36181214169.180 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 8-lamp T5HO, or 12-lamp T8 with HBF in an open high bay
ULB 4W HI HE UV 835
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PBL 4W HI HE UV 8354-foot/Wide38321246155.880 CRI / 3500K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 750W PSMH, or 9-lamp T5HO in an open high bay
ULB 4W HI HE UV 840
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PBL 4W HI HE UV 8404-foot/Wide39384246160.180 CRI / 4000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 750W PSMH, or 9-lamp T5HO in an open high bay
ULB 4W HI HE UV 850
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PBL 4W HI HE UV 8504-foot/Wide40447246164.480 CRI / 5000K120-277V, 347V, 480VYes5 years, 10 years optionalUp to 189,000 hrs (calculated)Replaces 750W PSMH, or 9-lamp T5HO in an open high bay
*NOTE: Fixture equivalencies are estimates only and should be confirmed by photometric analysis or sample install to ensure adequate light levels are achieved. Lumen Adjustment Factors - FR lens: 0.93; Wireguard: 0.90; FR and Wireguard: 0.85