Replacement Light Bulb for Plusrite LU50/MED - 50 Watts 4000 Lumens ED17 Shape

Replacement for the Plusrite LU50/MED high pressure sodium lamp that restores full functionality to existing fixtures without requiring any system modifications. This 50 watt ED17 shape bulb produces 4000 lumens of warm light at 2100K color temperature while delivering a rated lifespan of 24000 hours under normal operating conditions. The clear finish and CRI rating of 22 preserve the original light quality and intensity that users expect from the OEM product. Its E26 medium screw base ensures straightforward installation into standard sockets found in multi-application commercial and industrial setups.

Key Features & Benefits

• Operates at 50 watts with 4000 lumens output
• Color temperature of 2100K for consistent illumination
• 24000 hour rated life reduces replacement frequency
• CRI of 22 and clear finish maintain original light characteristics
• E26 medium screw base fits standard sockets listed in specifications

Product Specifications

• Watts: 50
• Base: E26 MEDIUM SCREW, 1-INCH DIAMETER (E27)
• Color Temp: 2100
• Lumens: 4000
• Shape: ED17
• Life: 24000
• CRI: 22
• Bulb Finish: CLEAR

Replacement Compatibility

This part serves multi-application fixtures requiring a 50 watt ED17 high pressure sodium light bulb with E26 base. It aligns with the electrical and physical parameters of the original Plusrite LU50/MED for direct substitution in supported setups. Users benefit from continued operation in outdoor security lighting, warehouse high bays, street lighting, and landscape applications where reliable warm spectrum output is essential. The design matches the starting characteristics and warm-up behavior of legacy high pressure sodium systems, avoiding compatibility issues that sometimes arise with newer technologies. Proper handling during installation preserves the integrity of the arc tube and outer envelope, maximizing the expected service interval. Regular cleaning of the fixture lens combined with this bulb maintains optimal light output over the full rated life. Inventory managers appreciate the standardized dimensions that allow bulk stocking without concern for fit variations across different fixture brands. Additional considerations include verifying socket condition prior to insertion and confirming voltage compatibility with the ballast to prevent premature failure. Over time the consistent performance supports energy planning in facilities that rely on predictable lighting cycles for safety and productivity.

Discover the Perfect Replacement

Browse our selection of exact-fit light bulb replacements to keep your current fixtures operating without full system changes. Select this option to match the listed specifications and restore performance.

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.