Cross-Border New LED Multi-Light Source Running Light Built-in Battery Digital Display Magnetic Sensor Small Headlamp

Model T614 Light bulb 3*LED main lights + 4*LED auxiliary lights (2*LED white lights + 2*LED red lights) Product size/net weight 6*5*3CM 70G Box size/gross weight 7.5*7.2*5.3CM 103G Material ABS Switch Dual push-button switch (power switch + sensor switch) Battery Built-in 700mAh polymer battery Charging method Type-C USB charging Gear position Six modes: 3*LED main lights on strong light - 3*LED main lights on weak light - 2*LED auxiliary lights on white light - 3*LED main lights + 2*LED auxiliary lights on white light - 2*LED red lights on - 2*LED red lights flashing Any setting can be detected. If you stay at any setting for 5 seconds and then press again, it will turn off Zoom mode None Waterproof rating IPX4 Lumen/Range 300lm 50-100m Features Multi-light source, with sensor, replaceable and detachable cap clip, magnetic base, one light for multiple uses Indicator light Digital percentage LED power display. When charging, the LED display screen shows a flashing green lightning symbol Color Black, gray, orange 1. Check the battery: Make sure the battery has power and insert it into the flashlight in the correct direction. Do not use batteries of different brands, and do not mix old and new batteries. 2. Determine the fault: Unscrew the back part to expose the negative terminal of the battery, then use a metal piece such as a key or tweezers to connect the negative terminal of the battery to the exposed, unoxidized part of the flashlight body, and see if it lights up.If possible, it's a problem with the flashlight switch.Please follow step 3 for inspection. If it still doesn't light up, please check the solder joints between the circuit compartment and the circuit board for any open or loose welds. If there are any, please re-solder them to resolve the issue. 3. Check the tail cover switch: Unscrew the end of the flashlight and you will see that the outer ring of the switch cap has a switch pressure ring with two recesses. Use scissors or a sturdy pair of tweezers to insert into the two recesses and turn clockwise to check if the switch pressure ring is loose. Make sure the switch pressure ring is tightly pressed against the switch and there should be no looseness. 4. Check for poor contact: When the flashlight does not light up or has poor contact, check whether the lamp head is loose, inspect the tail cap to ensure the switch is tightly screwed and well-connected, and ensure that the copper post of the tail cap is in good contact with the metal ring of the tail cap. 5. Other issues: If the above methods still cannot resolve the issue, please contact our customer service, and we will assist you in resolving the problem.