Replacement for RB-3/500 ADB / ALNACO Halogen - PAR56 Shape GX16D Base 500W 120V with Clear Finish

Built to the specifications of the RB-3/500 from ADB / ALNACO, this compatible halogen replacement provides a straightforward path to restoring your equipment. At 500W, 120V, PAR56 form factor, it drops into the GX16D mogul end prong base socket and runs at the correct operating point.

This lamp produces the reliable, high-output illumination that professional stage fixtures like Fresnels, ellipsoidals, and PAR cans are designed to deliver. It maintains stable color temperature from first use through end of life, helping avoid visible mismatches between instruments. It reaches full brightness immediately and handles the sustained operating temperatures of theatrical environments.

Key Features & Benefits

• GX16D mogul end prong base provides reliable electrical contact and stable operation.
• PAR56 form factor with clear finish for controlled light output.
• 500W at 120V for compatibility with line-voltage fixtures and power supplies.

Product Specifications

• Wattage: 500W
• Voltage: 120V
• Base Type: GX16D
• Bulb Shape: PAR56
• Finish: Clear Finish
• Condition: Brand New

Common Applications

This halogen lamp is commonly used in:

• Stage and theatrical Fresnel spotlights
• Film and broadcast studio key lights
• Concert and touring wash and spot fixtures
• Auditorium and house of worship lighting
• Television studio and remote production instruments

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.