Ever try their drill bits ?
Most of my LEDs have failed switches. I have 3 that work good. That tells how many I've gone through.
I bought a big heavy led 500 lumen light at the home depot. I had to fix the switch as soon as I brought it home. I figured I'd save time taking It back. Real neat lamp. $20 .
I bought an led replacement for my scout/military angled flashlight. The darn switch leaks current enough to dimly light the led on off. Dam.
Greg