🟣100% Compatible Replacement: Specially engineered for seamless fit with Honeywell UV2400U1000 and UV2400U5000 air systems—no modifications needed. 🟣High Performance UV-C Output: 4-pin lamp delivers powerful 254nm ultraviolet light for Honeywell UV2400U1000 and UV2400U5000 air systems. 🟣Durable Quartz Glass Construction: Built from premium quartz glass for maximum UV transmission and a long operational life of up to 12,000 hours. 🟣One Year Warranty: Backed by a 1-year warranty; for best performance, replace bulb every 12 months. 🟣Quality Assurance: Manufactured in an EPA Registered Establishment (No. 96823-PA-1) by LSE Lighting for consistent reliability and safety. Maintain indoor air with the LSE Lighting UV2400XPCO1 UV Lamp, a premium replacement bulb fully compatible with Honeywell UV2400U1000 and UV2400U5000 systems. This high-quality UV-C lamp uses a 4-pin (all pins on one end) base for easy installation and delivers 254nm light for residential or commercial HVAC systems. Constructed from robust quartz glass, this bulb provides up to 12,000 hours of effective UV output, and comes with a 1-year warranty for peace of mind. Manufactured in an EPA Registered Establishment (No. 96823-PA-1), LSE Lighting UV lamps are trusted for their safety, durability, and performance. Please Note: This is a compatible replacement bulb by LSE Lighting. Honeywell brand names, trademarks, and model numbers are used strictly for compatibility reference. Specifications: Brand: LSE Lighting Model: UV2400XPCO1 Type: UV-C 254nm Bulb Base: 4-pin (all pins on one end) Glass Type: Quartz Effective Life: 12,000 hours Warranty: 1 year (replace every 12 months recommended) EPA Registration: 96823-PA-1 Compatibility: Honeywell UV2400U1000, UV2400U5000 Package Includes: 1 x UV2400XPCO1 UV Lamp for Honeywell UV2400U1000, UV2400U5000