RAB H15B Field-Adjustable High Bay — 150/120/100W Selectable — 3000K/4000K/5000K — Black

The RAB H15B is a commercial high bay engineered to deliver up to 23,024 lumens with field-adjustable 150W / 120W / 100W power settings and switchable 3000K / 4000K / 5000K color temperatures. Operating on 120–277V electrical systems with 0–10V continuous dimming, this luminaire provides energy-efficient replacement for legacy fixtures up to 400W Metal Halide. Built with an IP65 wet location rating and UL Listing, it is qualified for commercial utility rebates under DLC Premium standards and is compatible with RAB automated facility lighting controls.

Key Features

• Selectable Wattage: 150W / 120W / 100W — field-adjustable via onboard switch
• Wattage Equivalency: Replaces legacy 400W Metal Halide fixtures for direct energy savings
• Maximum Lumen Output: 23,024 lm at 150W (4000K setting)
• Peak Efficacy: 167.7 lm/W for high-efficiency commercial operation
• Color Consistency: 7-step MacAdam Ellipse binning to achieve consistent fixture-to-fixture color
• CRI: >81 color rendering across all settings
• Selectable CCT: 3000K / 4000K / 5000K — field-adjustable via onboard switch
• Lens & Optics: Durable polycarbonate lens
• Dimming: 0–10V continuous dimming standard (dims down to 10%)
• Voltage: Universal 120–277V AC, 50/60Hz constant current driver
• Location Rating: UL Listed for wet locations; IP65 ingress rated
• Operating Temperature: −40°F (−40°C) to 122°F (50°C) ambient range
• Certifications: DLC Premium, UL Listed, RoHS Compliant
• Rated Life: L70 >100,000 hours per IES TM-21 standards
• Warranty: 5-year limited warranty — RAB

Performance & Light Output

At 150W: 20,675 lm (3000K / 133.3 lm/W), 23,024 lm (4000K / 156.1 lm/W), 21,570 lm (5000K / 139.6 lm/W).

At 120W: 17,214 lm (3000K / 142.7 lm/W), 18,929 lm (4000K / 162.8 lm/W), 18,229 lm (5000K / 150.4 lm/W).

At 100W: 14,708 lm (3000K / 149.9 lm/W), 15,953 lm (4000K / 167.7 lm/W), 15,488 lm (5000K / 157.6 lm/W).

CRI >81 across all configurations. Rated life 100,000 hours (L70) per IES TM-21 testing. Delivers direct energy reduction compared to traditional high-intensity discharge systems.

Smart & Control Features

The H15B supports modular sensing and automated facility lighting control:

• 0–10V Continuous Dimming (Standard): Standard dimming control compatible with commercial 0–10V dimmers and centralized building automation systems (BAS).
• Sensor Compatibility (Accessory): Compatible with field-installable PIR and microwave occupancy sensors.
• Lightcloud Blue (Accessory): Compatible with Bluetooth mesh controllers for wireless group control, automated scheduling, and occupancy sensing.

Compatible plug-and-play sensors include the PIR40, PIR20, MVS50, and MVS20 series — sold separately.

Electrical

Powered by a Class 1 constant current driver operating on 120–277V AC at 50/60Hz. Integrated 6kV + 6kV surge protection protects internal electronics against line-to-line and line-to-ground transient voltage spikes. Includes pre-wired 0–10V dimming leads. Factory-equipped with a 6-foot cord. RoHS compliant.

Operating current and amp draw across input voltages for branch circuit and breaker loading calculations:

Construction

Housing & Thermal: Precision die-cast aluminum housing. The housing functions as a high-efficiency passive heatsink, dissipating heat away from LED arrays and internal driver circuits to preserve lumen maintenance across the 100,000-hour rated lifespan.

Lens & Optics: Features a durable polycarbonate lens.

Finish: Commercial finish in Black formulated for high resistance against corrosion and surface wear in demanding industrial facilities.

Environmental Sealing: IP65 rated and UL Listed for wet locations, providing a sealed barrier resistant to dust and moisture ingress. Ambient operating temperature range: −40°F (−40°C) to 122°F (50°C).

Dimensions & Weight: 9.06" Dia × 7.44" H (with hook). Fixture weight: 4.1 lbs.

Installation & Mounting

Standard Hardware: Ships standard with a 3/4"-14 NPT hanging hook accessory for quick suspension installation.

Mounting Options: Compatible with rigid pendant mounting via the PM KIT (sold separately) and direct surface mounting via the SM KIT (sold separately).

Wiring: Includes a factory-installed 6-foot cord for power input and 0–10V dimming leads.

Accessories (Sold Separately):

• Mounting Brackets: H17-PM KIT (Pendant Mount Kit, White) | H17B-PM KIT (Pendant Mount Kit, Black) | H17-SM KIT (Yoke Surface Mount, White) | H17B-SM KIT (Yoke Surface Mount, Black)
• Reflectors & Lenses: H15-RPC (Polycarbonate Refractor) | H15-RAL (Aluminum Reflector) | H17-RDL (Drop Lens)
• Wire Guards: H15B-WG (Black)
• Emergency Battery Backup: EMHB30B (30W, Black) | EMHB30B/LCB (30W Lightcloud Blue, Black)
• Sensors & Controls: PIR40B (PIR Sensor, Black) | MVS50B (Microwave Sensor, Black) | PIR20B (Low Ceiling PIR, Black) | MVS20B (Low Ceiling MVS, Black) | PIR40B/LCB (Lightcloud Blue PIR, Black) | MVS50B/LCB (Lightcloud Blue MVS, Black) | MSR1 (Programming Remote)

Certifications & Rebates

• DLC Premium: Qualifies for utility rebates (searchable on designlights.org under code S-XDBZ3C)
• UL Listed: Certified for wet locations per UL standards for commercial luminaires
• RoHS Compliant: Manufactured free of lead, mercury, and hazardous heavy metals

Typical Applications

• Warehouses & Distribution Centers — replaces legacy 400W Metal Halide systems for direct energy savings
• Manufacturing & Assembly Facilities — field-adjustable CCT and 7-step MacAdam Ellipse binning supports visual task accuracy and tailored comfort
• Covered Loading Docks & Canopies — UL Wet Location listing and IP65-sealed enclosure protect against airborne moisture and dust
• Gymnasiums & Athletic Facilities — optional wire guards and pendant mounts provide impact protection and stability

What's Included

• RAB H15B Field-Adjustable High Bay — Black
• Hanging hook accessory
• Factory-installed 6-foot power cord
• Installation and operation instructions