HQRP 45 Lumens 0.5w LED Bulb 1v - 9V for Portable lighting/Flashlights / Head Lamps/Lanterns / Ceiling Lights plus HQRP UV Meter HQRP&reg; Replacement LED Bulb plus HQRP&reg; UV Meter; Working Voltage: 1-9V DC; Lumen: 45LM; Power: 0.5W; Base: P13.5; 200 days warranty!