Replacement for 178-021 COLORTRAN Halogen - T3 Shape R7S Base 300W 120V with Clear Finish

This halogen lamp is a compatible replacement for the 178-021 by COLORTRAN. It operates at 300W, 120V, T3 form factor and fits directly into fixtures that accept a R7S recessed single contact base. With a rated output of 5,900 lumens, it delivers the brightness needed for theatrical and broadcast lighting instruments.

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

• Produces 5,900 lumens to support demanding lighting applications.
• R7S recessed single contact base provides reliable electrical contact and stable operation.
• T3 form factor with clear finish for controlled light output.
• Rated 300W, 120V - sized for standard line-voltage electrical systems.

Product Specifications

• Wattage: 300W
• Voltage: 120V
• Base Type: R7S
• Bulb Shape: T3
• Finish: Clear Finish
• Lumens: 5,900
• 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.