WF-501B use extremely aluminum alloy body,slip-resistant handle,comes with convenient hand strap,pocket size suitable for everyday carry.High-efficiency and great output V6 LED bulb,800 lumen max,180 meters of lighting distance. 5 Modes: High>Mid>Low>Strobe>SOS,especially suitable for outdoor camping, walking at night. Mini flashlights can be put into the pocket, which is very convenient for you. Advanced design: skid-proof design and water resistant design (Highest water resistant level of IPX-6).Don't worry about using it in rainy days, which will allow you to see the clearer road under the rain(Do not be submerge in the water). Ideal choice:Search,Hunting,Gear,Outdoor,Camping,Hiking,Trekking and other activities. Power by:1 x 18650 battery(battery not included).Input voltage of 3.7v-8.2v.