Granvela UltraTac K18 Flashlight 360 Lumen IPX-8 Waterproof Portable Mini AAA Keychain Cree LED Torch-Stainless Steel The flashlight is made in machined stainless steel with polished finish against slipping, level IPX8 water resistance and 1.5m impact resistance perfect for the tough conditions or everyday use Direct Thermal Patch (DTP) Copper MCPCB: Direct Thermal Path Copper MCPCB provide excellent heat dissipation to ensure the best light performance. AR coated lens, 99% light transmittance. Light source: CREE XP-G2 S2 LED. All the joint with O-ring sealed. Support four variable lighting modes (high, medium and low) plus strobe via the side button switch 360 lumens max output. Using a 10440 li-ion battery. It also offers a 110 lumens output by using a single AAA battery. You will be marveled at its negligible volume, weight; the flashlight can be put in a purse, pocket, or simply fasten onto your cap by detachable two-way clip