RAB H15B Field-Adjustable UFO LED High Bay — 150W / 120W / 100W Selectable — Black

The RAB H15B is a field-adjustable UFO LED high bay in a black powder coat finish, delivering up to 23,024 lumens with selectable wattage of 150W, 120W, and 100W and selectable CCT of 3000K, 4000K, and 5000K. It operates on universal 120-277V with integrated 0-10V dimming to 10%, carries a UL Wet Location listing and IP65 ingress protection rating, and is certified DLC Premium (S-XDBZ3C) — qualifying for the highest tier of utility rebate programs. Cold weather rated to -40°F (-40°C). Replaces up to 400W Metal Halide at the 150W setting.

Key Features

• Selectable Wattage: 150W / 120W / 100W — field-adjustable via built-in selector switch, factory default 150W
• Selectable CCT: 3000K / 4000K / 5000K — field-adjustable, factory default 4000K
• Maximum Lumen Output: 23,024 lm at 150W / 5000K
• Peak Efficacy: 167.7 lm/W
• CRI: 81–83 across all wattage and CCT configurations
• Color Consistency: 7-step MacAdam Ellipse binning for consistent fixture-to-fixture color
• Dimming: 0-10V dimming standard, dim to 10%; Dim to Off capable
• Voltage: Universal 120-277V, 50/60Hz; constant current driver; 480V available (/480 suffix)
• Location Rating: UL Listed for wet locations; IP65 rated for dust and water ingress
• Cold Weather Start: Minimum starting temperature -40°F (-40°C)
• Maximum Ambient Temperature: 122°F (50°C)
• Certifications: UL Wet Location, DLC Premium (S-XDBZ3C), IES LM-79 and LM-80 tested
• Rated Life: 100,000 hours L70 (IES LM-80 / TM-21)
• Warranty: 5-year limited — covers light output, driver performance, and paint finish
• Wattage Equivalency: 150W replaces 7× F5HO or 400W MH; 120W replaces 5× F5HO or 400W MH; 100W replaces 8× F32T8 or 4× F5HO or 350W MH

Performance & Light Output

At 150W: 19,990 lm (3000K / 133.3 lm/W), 21,262 lm (4000K / 141.7 lm/W), 23,024 lm (5000K / 153.5 lm/W). At 120W: 16,708 lm (3000K / 139.2 lm/W), 17,718 lm (4000K / 147.7 lm/W), 19,210 lm (5000K / 160.1 lm/W). At 100W: 14,708 lm (3000K / 147.1 lm/W), 15,520 lm (4000K / 155.2 lm/W), 16,770 lm (5000K / 167.7 lm/W). CRI 81–83 across all configurations. Rated life 100,000 hours L70 per IES LM-80 / TM-21.

Smart & Control Features

The H15B supports two factory-configured control options:

• 0-10V Dimming (standard): Dims to 10% via standard 0-10V DC circuit, Dim to Off capable. Compatible with most commercial building control and energy management systems.
• Lightcloud Blue (accessory): Add PIR40B/LCB or MVS50B/LCB sensor/controller accessories for wireless Bluetooth mesh group control without additional wiring.

Remote control accessory (catalog# MSR1) available for field adjustment of wattage and CCT on 0-10V models. Occupancy sensors: PIR40B (PIR, max 12m, IP66) and MVS50B (microwave, max 15m, IP65) available with or without Lightcloud Blue integration. Order /LCBS suffix for factory-installed Lightcloud Blue sensor; /LCBS/E for Lightcloud Blue with emergency battery backup.

Electrical

Constant Current, Class 1 driver. Input: 120-277V, 50/60Hz. Input amps: 120V: 1.25A (150W) / 0.98A (120W) / 0.84A (100W); 208V: 0.72A / 0.57A / 0.49A; 240V: 0.63A / 0.50A / 0.43A; 277V: 0.55A / 0.44A / 0.38A. Input watts: 95.1–155.1W. THD: 3.07% at 120V, 7.76% at 277V. Power Factor: 99.8% at 120V, 95.2% at 277V. Surge protection: 6kV + 6kV (L-N and L&N-GND). Auxiliary power supply: included. Emergency battery backup available separately: EMHB30B (Black, 30W, 120-277V) | EMHB30B/LCB (Lightcloud Blue, Black). Mercury-free, UV-free, RoHS-compliant components.

Construction

Precision die-cast aluminum housing in black powder coat finish formulated for high durability and long-lasting color. Polycarbonate lens. Polycarbonate with aluminum plating reflector (reflector accessories sold separately). IP65 rated for dust and water ingress. Weight: 4.1 lbs. Dimensions: 9 1/16 in dia × 7 7/16 in H.

Installation & Mounting

Comes standard with a heavy-duty hanging hook and 6-foot cord. Heavy-duty 3/4–14 NPT hook and 3/4–14 pendant mount capable (pendant by others). Recommended ceiling heights by wattage: 150W for ceilings 25–45 ft; 120W for 20–35 ft; 100W for 15–25 ft. For higher ceiling applications, see RAB H15BXL (240/200/150W). Optional accessories (sold separately):

• Reflectors: H15-RPC (Polycarbonate) | H15-RAL (Aluminum)
• Wire Guards: H15B-WG (Black)
• Drop Lens: H17-RDL
• Pendant Mount Kit: H17B-PM KIT (Black)
• Surface / Yoke Mount Kit: H17B-SM KIT (Black)
• Emergency Battery Backup: EMHB30B (Black) | EMHB30B/LCB (Lightcloud Blue, Black)
• Occupancy Sensors: PIR40B | MVS50B (with /LCB variants for Lightcloud Blue)

Certifications & Rebates

UL Listed for wet locations. DLC Premium listed — product code S-XDBZ3C. To verify rebate eligibility with your utility provider, visit designlights.org and search product code S-XDBZ3C. RoHS compliant. IES LM-79 and LM-80 tested per IESNA standards.

Typical Applications

• Warehouses and distribution centers — selectable wattage matches light levels to aisle height and spacing
• Cold storage and freezer warehouses — rated to -40°F (-40°C) for dependable cold-start performance
• Manufacturing and assembly facilities — IP65 rating handles dust and wash-down splash environments
• Covered loading docks and car washes — UL wet location listing supports direct moisture exposure
• Gymnasiums and recreation centers — black finish preferred for dark ceiling aesthetics

What's Included

• RAB H15B UFO LED high bay fixture — Black
• Heavy-duty hanging hook
• 6-foot cord
• Mounting hardware