Replacement for 176-173 COLORTRAN Halogen - T4 Shape P28S Base 500W 120V with Clear Finish

When the lamp in your theatrical and broadcast studio lighting instrument reaches end of life, this compatible replacement for the 176-173 by COLORTRAN gets you back up and running. It matches the original at 500W, 120V, T4 form factor with a P28S medium prefocus base for a direct fit.

This lamp provides the smooth dimming characteristics and warm color temperature that stage and theatrical productions demand. It delivers powerful, controllable output that lighting designers can shape, focus, and dim to suit each scene. It maintains consistent lumen output and color stability over its rated life, which is important when matching fixtures across a rig during technical rehearsals.

Key Features & Benefits

• 10,450 lumens of rated output for strong, consistent illumination.
• P28S medium prefocus base for secure installation in compatible fixtures.
• T4 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: P28S
• Bulb Shape: T4
• Finish: Clear Finish
• Lumens: 10,450
• 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.