RAB H17XXLB UFO High Bay 79,203 Lumens 500W/400W/300W Selectable 3000K/4000K/5000K 120-277V Black

RAB H17XXLB Field-Adjustable UFO LED High Bay — 500W / 400W / 300W Selectable

The RAB H17XXLB is a field-adjustable UFO LED high bay delivering up to 79,203 lumens with selectable wattage options of 500W, 400W, and 300W and selectable CCT of 3000K / 4000K / 5000K. The fixture operates on universal 120–277V with integrated 0–10V dimming to 10%. It is UL Listed for wet locations with IP65 ingress protection and is DLC Premium listed for rebate eligibility. Designed for warehouses, distribution centers, gymnasiums, and other high-ceiling commercial or industrial environments requiring very high lumen output and durable construction.

Key Features

• Selectable Wattage: 500W / 400W / 300W
• Selectable CCT: 3000K / 4000K / 5000K
• Maximum Output: Up to 79,203 lumens
• Voltage Range: 120–277V, 50/60Hz
• Dimming: 0–10V dimming to 10%
• Environmental Rating: Wet location rated, IP65
• Certifications: DLC Premium, UL Listed
• LED Lifespan: 100,000 hours (L70)

Typical Applications

• Warehouses
• Distribution centers
• Manufacturing facilities
• Gymnasiums
• Industrial workshops
• Retail stockrooms
• Aircraft hangars

Performance & Light Output:
Delivered lumen output ranges from 49,020 to 79,203 lumens depending on selected wattage and CCT. Efficacy ranges approximately 147–178 lm/W with 81–84 CRI. Rated for 100,000-hour L70 lifespan with LM-80 testing referenced by the manufacturer.

Electrical & Controls:
Operates on 120–277V, 50/60Hz with a constant current Class 1 driver. Includes integrated 0–10V dimming capable of dimming to 10%. Surge protection rated 6kV (L-N) and 10kV (L/N-PE). Power factor remains high across voltages. Compatible with optional RAB sensors and Lightcloud control systems.

Construction & Durability:
Precision die-cast aluminum housing with polycarbonate lens. Rated IP65 for dust and water ingress and suitable for wet locations. Cold weather start down to -40°C and max ambient of 50°C. Mercury-free and RoHS-compliant. Black finish formulated for durability and long-lasting color.

Installation & Mounting:
Includes a hanging hook and 6-foot cord for suspension mounting. For pendant mounting, order the H17XXLB-SM KIT accessory which connects the fixture to a 3/4"-14 pendant mount (pendant by others). 

Included
LED high bay fixture, hanging hook, and 6-foot cord.