LSE Lighting UV Lamp 18" for UV-18 UV-18C Field Control UV-Aire Brand: LSE Lighting - Bulb Type: Ultraviolet Germicidal UV Base: 4pin (4pins on ONE END) - with retaining ring on the base for mounting Length: 18" This lamp by (LSE Lighting) is fully compatible replacement for use with UV-Aire Model UV-18/UV-18C All lamps listed are compatible brand (LSE Lighting) UV products. We do not sell Field Control & UV-Aire brand lamps. All Field Control & UV-Aire brand names, trademarks and logos are property of Field Control & UV-Aire.