Maintenance and inspection method for strong light flashlight
If there is a LED light is not bright, please follow the following methods for initial maintenance: First, determine the fault: unscrew the tail, with a battery cathode, with a metal scissors or tweezers, connecting the battery negative electrode and battery beside the flashlight body bare unoxidized part, to see if the light. If you can, is the flashlight switch, please check in step 3; if there is no light please check the circuit positions and circuit board connections are open welding or soldering welding, please re welding if you can solve the problem. Two, check the battery: battery power load and ensure the correct direction of battery, do not use different types of batteries, the battery can not be used together. Three, check the tail cap switch: unscrew the LED flashlight tail, you can see the outer switch spring has a switch with two concave point pressure ring, not even a concave point in a clockwise rotation with tweezers or scissors, check the switch pressure r...