HQRP 45 Lumens 0.5w LED Bulb for LWSA201 LWSA301 LWSA401 LWSA501 LWSA601 White Star Krypton Lamp replacement 2 3 4 5 6 D-Cell Mag-Lite Flashlight 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!