RAB Lighting H17 Series High Bay Accessory — Dome Drop Lens (150W)

The H17-DDL is an industrial-grade clear dome drop lens engineered specifically to complement RAB Lighting H17 and H17S series LED high bay fixtures. Designed for compatibility with 150W models operating on 120-277V systems, this passive optical accessory enhances vertical light distribution while maintaining high lumens efficiency. Its durable construction provides an essential layer of physical protection for the LED array, making it a critical addition for demanding commercial applications.

Key Features

• Compatibility: Designed exclusively for RAB Lighting H17 (150W/125W/100W) and H17S (100W/80W/60W) LED high bays.
• Optics: Clear dome configuration broadens the light distribution profile for improved volumetric lighting.
• Protection: Shields the fixture's internal LED board from airborne dust, particulate matter, and physical contact.
• Weight: Lightweight 0.87 lb profile adds minimal mechanical stress to the suspended host fixture.
• Integration: Maintains the host fixture's IP65 rating and wet location suitability when properly installed.
• Design: Smooth clear finish resists dirt buildup and allows for easy maintenance cleaning.
• Passive Component: Requires no electrical modifications to the 120-277V host luminaire.
• Attachment: Pre-drilled alignment holes ensure perfectly centered and secure installation.

Typical Applications

• Warehouse and distribution center aisles requiring high vertical illumination.
• Manufacturing facilities and industrial assembly plants.
• Commercial gymnasiums and indoor sports complexes.
• Retail superstores and big-box commercial spaces.
• Aviation hangars and large equipment maintenance bays.

Performance & Light Output

As a precision-engineered optical accessory, this clear dome drop lens effectively shapes the raw lumens generated by the host high bay fixture. By extending below the fixture's housing, the lens expands the outward beam angle, pushing more light onto vertical surfaces such as warehouse racking and shelving. Its high-transmission clear material ensures maximum photometric efficacy while softening direct LED glare for improved visual comfort in the workspace.

Electrical & Controls

This unit is a passive structural and optical accessory containing no internal electronics, wiring, or drivers. When installed, it fully relies on the electrical architecture of the host RAB Lighting H17 fixture, accommodating its standard 120-277V or 480V power systems. The lens does not interfere with the host fixture's surge protection, power factor, or any integrated dimming and sensor control modules.

Construction & Durability

Built to withstand the rigors of commercial and industrial environments, the dome lens provides a robust physical barrier against external elements. Weighing just 0.87 lbs, the durable clear material shields the sensitive LED diodes from dust, debris, and accidental impacts without adding significant downward strain to the fixture's mounting hardware. It is fully compatible with the host fixture's wet location ratings and extreme operating temperature ranges.

Installation & Mounting

The drop lens is designed for rapid field installation directly onto the heat sink of the H17 or H17S high bay. The process involves aligning the pre-drilled screw holes on the lens flange with the corresponding mounting points on the host fixture's heat sink. Using the standard provided screws, contractors can securely fasten the lens in minutes without opening the electrical compartment or altering the primary mounting hooks and pendants.

What's Included

• (1) Clear Dome Drop Lens Accessory
• Mounting Screws