I have a Trustfire XM-L 3800 and only used a few times. I used on a dog walk and after 15 just stopped working. Batteries are fine....what has broken? There seems to be no product support available!
I have a Trustfire XM-L 3800 and only used a few times. I used on a dog walk and after 15 just stopped working. Batteries are fine....what has broken? There seems to be no product support available!
I don't have testing equipment, but I can try the wire suggestion to see if it's the switch. I note, however, that I did not damage the unit...it just stopped working while walking. Would a switch just fail like that?
Check to see if the ring inside the switch is tight. It can be tightened with tweezers or long nose pliers. Clean all points of contact. Check the switch as described above. Unscrew the head and look for bad solder joints, reflow if necessary.
This.If you're not up for going all out and repairing the light properly, I don't think you should buy a replacement part. It's just as likely the replacement would have just the same problem as the original light.
These generic lights can be good and reliable, but they almost always have to be made that way. This means completely disassembling them cleaning all contact surfaces, soldering any dodgy joints. And even redoing the thermal compound under each led star for better thermal performance for long term reliability. I've even gond so far as to taking the clicky switches apart and cleaning the contacts and soldering electrical paths solid on the clickies. If you're not willing to do these things, don't buy these lights. And definitely don't try buying replacement parts, they're of no better quality, so what would be the point?