Upgrade your Emperor Aquatics UV system with the 40W Smart UV Lamp—engineered for lasting performance and effective operation in aquatic environments. This 33-inch, 4-pin T5 base UV-C bulb is specifically designed to be a direct replacement for Emperor Aquatics model 20040 used in 02240 and 02280 units. With an average lifespan of 10,000 hours, this bulb delivers powerful ultraviolet output to help keep your water systems running smoothly and efficiently managed. Manufactured in the USA in EPA Registered Establishment No. 96823-PA-1, bulbs are trusted for their reliability and precise compatibility. Please note, this is a compatible replacement and not manufactured or endorsed by Emperor Aquatics. Model numbers and trademarks are used strictly for compatibility reference. Safety Information: Always use appropriate safety gear during installation and avoid direct exposure to UV-C light. 🟣Compatible Replacement: 100% compatible with Emperor Aquatics 20040 UV units (model numbers 02240, 02280; used for compatibility reference only). 🟣High Performance: 40 watt UV-C lamp with a 4-pin T5 base (all pins on one end) for effective performance in aquatic systems. 🟣Optimal Size and Fit: Measures 33 inches in length and offers a long average life of 10,000 hours for reliable operation. 🟣Quality Construction: Manufactured by in an EPA Registered Establishment No. 96823-PA-1 and designed in the USA for consistent, dependable performance. 🟣Important Note: All lamps listed are compatible products. We do not sell Emperor Aquatics brand lamps. All Emperor Aquatics names, trademarks, and logos are used for compatibility reference only. 🟣Safety Warning: Always use proper safety gear during installation and avoid direct exposure to UV-C light.