Premium LED High Bay
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Spec Sheets: ULB 2 | ULB 2W | ULB 4 | ULB 4W
Photometry: Coming Soon
High-res images: ULB 4-footer | ULB 2-footer | ULB wide 4-footer | ULB wide 2-footer
New! Additional colors: Metallic Silver | Matte Black | Matte Black (with FSP sensor)
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 made in the USA - in our Henderson, NC facility, utilizing mostly domestic and some foreign components.
- 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 HD ("Super High") package ranges from ~64,000 lm up to just over 68,000. Click here to learn more about the ULB HD.
- 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.
- Made in the USA, in our Henderson, NC facility, utilizing mostly domestic and some foreign components. BAA compliant options are available
All the control you need
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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).
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The ULB is also available with an optional on/off occupancy sensor (option "ZOS"). With the Leviton OSFHU-ITW (or an equivalent), each individual ULB can be controlled based on occupancy in its detection zone.
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Above: The Wattstopper FSP sensor with an L7 lens installed on a ULB. Top right: The iOS/Android app interface for the Bluetooth-enabled FSP-321B.
IoT compatibility
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We offer more robust network control options and Internet of Things (IoT) compatibility with products from Enlighted and Leviton. Contact us for more info. Also, if there's another control system you're looking for, just contact us. We can incorporate it.
ULB in Matte Black with black FSP sensor
ULB Performance Chart
| QPL/UL Reference # | Size/Width | Lumens | Watts | LPW | CRI / Color Temp | Voltages Available | DLC Listed | Predicted L70 Lifetime | Equivalency* | |
|---|---|---|---|---|---|---|---|---|---|---|
| ULB 2 LW UV 835 Image | PBL 2 LW UV 835 | 2-foot/Standard | 9041 | 72 | 125.1 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 LW UV 840 | 2-foot/Standard | 9340 | 72 | 129.2 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 LW UV 850 | 2-foot/Standard | 9620 | 72 | 133.1 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 MD UV 835 | 2-foot/Standard | 11422 | 87 | 131.3 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay |
| ULB 2 MD UV 840 Image | PBL 2 MD UV 840 | 2-foot/Standard | 11799 | 87 | 135.6 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 250W MH, or 4-lamp T8 with HBF in an open high bay |
| ULB 2 MD UV 850 Image | PBL 2 MD UV 850 | 2-foot/Standard | 12153 | 87 | 139.7 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 2-foot/Wide | 13432 | 104 | 129.2 | 80 CRI / 3500K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 2W MH UV 840 | PBL 2W MH UV 840 | 2-foot/Wide | 13876 | 104 | 133.4 | 80 CRI / 4000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 2W MH UV 850 | PBL 2W MH UV 850 | 2-foot/Wide | 14292 | 104 | 137.4 | 80 CRI / 5000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 2W HI UV 835 | PBL 2W HI UV 835 | 2-foot/Wide | 17889 | 119 | 150.3 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 840 | 2-foot/Wide | 18385 | 119 | 154.4 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 850 | 2-foot/Wide | 18881 | 119 | 158.2 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 4-foot/Standard | 11998 | 86 | 139.5 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 SL UV 840 | PBL 4 SL UV 840 | 4-foot/Standard | 12394 | 86 | 144.1 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 SL UV 850 | PBL 4 SL UV 850 | 4-foot/Standard | 12766 | 86 | 148.4 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 VL UV 835 | PBL 4 VL UV 835 | 4-foot/Standard | 13982 | 104 | 134.4 | 80 CRI / 3500K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 VL UV 840 | PBL 4 VL UV 840 | 4-foot/Standard | 14444 | 104 | 138.9 | 80 CRI / 4000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 VL UV 850 | PBL 4 VL UV 850 | 4-foot/Standard | 14877 | 104 | 143.1 | 80 CRI / 5000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 LW UV 835 | PBL 4 LW UV 835 | 4-foot/Standard | 17193 | 136 | 126.4 | 80 CRI / 3500K | 120-277V, 347V, 480V | No | Up 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 840 | 4-foot/Standard | 17761 | 136 | 130.6 | 80 CRI / 4000K | 120-277V, 347V, 480V | No | Up 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 850 | 4-foot/Standard | 18294 | 136 | 134.5 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 MD UV 835 | 4-foot/Standard | 20866 | 155 | 134.6 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 MD UV 840 | 4-foot/Standard | 21556 | 155 | 139.1 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 MD UV 850 | 4-foot/Standard | 22203 | 155 | 143.2 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 HI UV 835 | 4-foot/Standard | 22943 | 174 | 131.9 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 HI UV 840 | 4-foot/Standard | 23701 | 174 | 136.2 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 HI UV 850 | 4-foot/Standard | 24412 | 174 | 140.3 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 4-foot/Wide | 29538 | 189 | 156.3 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 840 | 4-foot/Wide | 30358 | 189 | 160.6 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 850 | 4-foot/Wide | 31178 | 189 | 165.1 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 4-foot/Wide | 34628 | 226 | 153.2 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 840 | 4-foot/Wide | 35589 | 226 | 157.4 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 850 | 4-foot/Wide | 36550 | 226 | 161.7 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 4-foot/Wide | 38979 | 261 | 149.3 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 840 | 4-foot/Wide | 40061 | 261 | 153.4 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 850 | 4-foot/Wide | 41143 | 261 | 157.6 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 750W PSMH, or 9-lamp T5HO in an open high bay |
| ULB 4W VH UV 835 Image | PBL 4W VH UV 835 | 4-foot/Wide | 50727 | 337 | 150.5 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 1000W MH, or 12-lamp T5HO in an open high bay |
| ULB 4W VH UV 840 Image | PBL 4W VH UV 840 | 4-foot/Wide | 52135 | 337 | 154.7 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 1000W MH, or 12-lamp T5HO in an open high bay |
| ULB 4W VH UV 850 Image | PBL 4W VH UV 850 | 4-foot/Wide | 53543 | 337 | 158.9 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 1000W MH, or 12-lamp T5HO in an open high bay |
| ULB 2 LW HE UV 835 Image | PBL 2 LW HE UV 835 | 2-foot/Standard | 8805 | 67 | 131.4 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 LW HE UV 840 | 2-foot/Standard | 9096 | 67 | 135.8 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 LW HE UV 850 | 2-foot/Standard | 9369 | 67 | 139.8 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 MD HE UV 835 | 2-foot/Standard | 11553 | 85 | 135.9 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 MD HE UV 840 | 2-foot/Standard | 11934 | 85 | 140.4 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2 MD HE UV 850 | 2-foot/Standard | 12292 | 85 | 144.6 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 2-foot/Wide | 13766 | 100 | 137.7 | 80 CRI / 3500K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 2W MH HE UV 840 | PBL 2W MH HE UV 840 | 2-foot/Wide | 14221 | 100 | 142.2 | 80 CRI / 4000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 2W MH HE UV 850 | PBL 2W MH HE UV 850 | 2-foot/Wide | 14648 | 100 | 146.5 | 80 CRI / 5000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 2W HI HE UV 835 Image | PBL 2W HI HE UV 835 | 2-foot/Wide | 17003 | 106 | 160.4 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2W HI HE UV 840 | 2-foot/Wide | 17475 | 106 | 164.9 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 2W HI HE UV 850 | 2-foot/Wide | 17947 | 106 | 169.3 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 4-foot/Standard | 12018 | 84 | 143.1 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 SL HE UV 840 | PBL 4 SL HE UV 840 | 4-foot/Standard | 12416 | 84 | 147.8 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 SL HE UV 850 | PBL 4 SL HE UV 850 | 4-foot/Standard | 12788 | 84 | 152.2 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 VL HE UV 835 | PBL 4 VL HE UV 835 | 4-foot/Standard | 13905 | 100 | 139.1 | 80 CRI / 3500K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 VL HE UV 840 | PBL 4 VL HE UV 840 | 4-foot/Standard | 14365 | 100 | 143.7 | 80 CRI / 4000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 VL HE UV 850 | PBL 4 VL HE UV 850 | 4-foot/Standard | 14796 | 100 | 148 | 80 CRI / 5000K | 120-277V | Yes | Up to 189,000 hrs (calculated) | |
| ULB 4 LW HE UV 835 | PBL 4 LW HE UV 835 | 4-foot/Standard | 15913 | 118 | 134.9 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 840 | 4-foot/Standard | 16439 | 118 | 139.3 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 850 | 4-foot/Standard | 16932 | 118 | 143.5 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 MD HE UV 835 | 4-foot/Standard | 19697 | 140 | 140.7 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 MD HE UV 840 | 4-foot/Standard | 20349 | 140 | 145.3 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 MD HE UV 850 | 4-foot/Standard | 20959 | 140 | 149.7 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 835 | 4-foot/Standard | 23543 | 174 | 135.3 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 840 | 4-foot/Standard | 24322 | 174 | 139.8 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4 HI HE UV 850 | 4-foot/Standard | 25051 | 174 | 144 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4W LW HE UV 835 | 4-foot/Wide | 27935 | 172 | 162.4 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4W LW HE UV 840 | 4-foot/Wide | 28710 | 172 | 166.9 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4W LW HE UV 850 | 4-foot/Wide | 29485 | 172 | 171.4 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4W MD HE UV 835 | 4-foot/Wide | 34279 | 214 | 160.2 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4W MD HE UV 840 | 4-foot/Wide | 35230 | 214 | 164.6 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up 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 850 | 4-foot/Wide | 36181 | 214 | 169.1 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up 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 Image | PBL 4W HI HE UV 835 | 4-foot/Wide | 38321 | 246 | 155.8 | 80 CRI / 3500K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 750W PSMH, or 9-lamp T5HO in an open high bay |
| ULB 4W HI HE UV 840 Image | PBL 4W HI HE UV 840 | 4-foot/Wide | 39384 | 246 | 160.1 | 80 CRI / 4000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 750W PSMH, or 9-lamp T5HO in an open high bay |
| ULB 4W HI HE UV 850 Image | PBL 4W HI HE UV 850 | 4-foot/Wide | 40447 | 246 | 164.4 | 80 CRI / 5000K | 120-277V, 347V, 480V | Yes | Up to 189,000 hrs (calculated) | Replaces 750W PSMH, or 9-lamp T5HO in an open high bay |