Replacement Light Bulb for SYLVANIA H38HT-100 Multi-Application - 100 Watts 5900K 4000 Lumens

Replacement for the SYLVANIA H38HT-100 in multi-application setups, this light bulb matches the 100 watt mercury HID specifications with ET23.5 shape and clear finish. It provides 4000 lumens at 5900K color temperature and operates for up to 24000 hours. The E39 mogul screw base ensures compatibility with standard fixtures requiring these exact parameters from the original equipment. Users benefit from consistent output in demanding environments where steady lighting output matters most. The mercury vapor technology delivers stable illumination suitable for large indoor spaces or outdoor areas needing broad coverage without frequent maintenance interventions. Its extended operational lifespan reduces replacement frequency and associated labor costs over time while maintaining high efficiency throughout the rated duration.

Key Features & Benefits

• Consumes 100 watts of power during operation
• Produces 4000 lumens of light output
• Operates at 5900K color temperature
• Achieves CRI rating of 22
• Delivers 24000 hours of rated life
• Features clear bulb finish on ET23.5 shape

Product Specifications

• Watts: 100
• Base: E39 MOGUL SCREW BASE 39MM DIAMETER (E40)
• Color Temp: 5900
• Lumens: 4000
• Shape: ET23.5
• Life: 24000
• CRI: 22
• Bulb Finish: CLEAR

Replacement Compatibility

This part is compatible with various mercury vapor lighting systems that use the H38HT-100 specifications from SYLVANIA across multi-application fixtures requiring 100 watt ET23.5 clear bulbs with E39 base. Proper installation begins by verifying that the existing fixture supports mercury HID lamps and matches the listed electrical and physical dimensions exactly. Once confirmed the new bulb installs directly into the socket providing immediate restoration of full lighting capability. Regular cleaning of the fixture reflector helps maximize light distribution and prevents dust buildup that could reduce overall performance. Always allow sufficient cooling time before handling any bulb to avoid thermal shock or injury during maintenance procedures. This approach ensures continued safe and efficient operation across commercial industrial or public spaces where dependable high intensity discharge lighting remains essential. Confirm your fixture requirements against the listed specifications to select the matching replacement light bulb for continued operation in mercury HID setups. Attention to detail during selection prevents mismatches that might otherwise lead to premature failure or suboptimal illumination levels. The robust construction withstands typical operating conditions while delivering consistent spectral output suitable for visibility critical tasks.

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.