Hey KingBusa, I'm sorry I never got the notification for this message! I literally was just looking in my account and came across it. I'm not a pro at soldering so I'll answer the best I can.
It depends on the LEDs you but whether they're drop-ins or have to be positioned in a specific way. I would check with the company you're ordering from.
I do just touch lightly as for you don't want to to accidentally burn the LED. Just be gentle and patient. This is for both removing and applying. It doesn't take much time with the iron on it before it comes loose. I positioned the LED in place then just touched it with the iron and solder real quick. It doesn't need to sit on it for a long time since it's already liquid after you touch the solder to the iron.
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