LSE Lighting compatible UV replacement Bulb for R1700GX Brand: LSE Lighting - Length: 6 1/2" Bulb Type: J Type (U Shape) - Ultraviolet Germicidal UV - Base Type: 4pin Lamp Shape: J Type T6 Dual High Intensity This UV replacement lamp by (LSE Lighting) brand is 100% compatible for use with Purifier Model R1700GX and LMPRGJ65. All lamps listed are compatible brand (LSE Lighting) brand UV products.