ThruNite TN12 V4 1100 Lumens Handheld Flashlight CREE XP L V6 EDC LED Flashlight Indoor Outdoor Camping Hiking Security and Emergency Use Cool White CW

Feature and Specification: -- Cree XP-L V6 LED - Uses one 18650 rechargeable battery (No Included). - Max output:1100 lumens with XP-L V6 - Working voltage: 2.7V-6V - 140mm (Length)*25.4mm (Diameter) - 87g weight (without batteries) - Reverse polarity protection design to protect from improper battery installation - Versatile mode:Turbo (1100lm / 2.2hours), Strobe (1100lm / 3.6hours), High (472lm / 3.4hours), Medium (200lm / 8.7 hours), Low (21lm / 2.5 days), Firefly (0.5lm / 49 days) - Aircraft-grade aluminum body - Premium Type III hard-anodized anti-abrasive finish - Toughened ultra-clear glass lens with anti-reflective coating - Smooth reflector gives perfect beam and throw. Operation Turn ON/OFF Press the tail switch gently for momentary on or until it clicks to turn on the light.Press again to turn the light off. Changing Modes With the light turns on, press the side switch to circle through five different mode outputs from firefly mode, low, medium,high and Max. Trouble-shooting tips when you have problems with your flashlight: 1. If the light can not be turned on or it flickers, please check and see if the battery is used up and replace with a new one; Light will flash when voltage is low. 2. Please put tweezers in two tiny holes in the tail cap to tight or loose the aluminum ring, this will solve the loosen contact 3. Please check if there is dust on the positive or negative end, or on the electricity conducting surface, if so, please use a clean cloth to clean the surface. 4. If it still does not work, please test with short electrical bridge between unanodized part of the battery tube with the negative terminal of the battery. If the light turns on, then it is the problem with tail switch. This will decide if the problem is existed in light head