HQRP High Power 3w Ultraviolet Long-wave 3w LED Bulb with 390 nM wavelength LED Bulb for Magnum Star II LMXA501 Xenon Lamp 5 Cell C and D Mag-Lite Flashlights replacement Bulb plus HQRP UV Meter HQRP&reg; Ultraviolet LED Replacement Bulb plus HQRP&reg; UV Meter; Working Voltage: 1-9V DC; Wavelength 390-400nm; Power: 3W; Base: P13.5; 200 days warranty!