Looking for a little help

Flashlight Modding and DIY Parts
1

Hi guys, I am trying to figure out if I am doing something wrong or not. I have 3 Nanjg 105c drivers and all three of them will only do 1 mode of high. I have ben soldering for 40+ years so I am pretty sure the soldering is OK. The + of the led to the + pad and the - to the outer ring. Three different lights all hve the same issue. Does not matter about soldering the stars either. I am not sure what is going on here. I have installed drivers in other lights with no problem but these 3 heve me baffled. Any thoughts?

On the plus side one is in my Trustfire X9 with the forward clickie. I like it better this way than stock. Who needs different modes on an X9 ? When you get it out you are looking for max lumens anyway.

Thanks

2

You mustn't solder the LED's negative wire to ground. The 7135s are supposed to sit between the LED and ground, so you are bypassing the whole regulation. There is a pad next to the top left 7135, that is where your negative lead goes.

3

thanks! All is right with the universe now!