I plan on taking apart my pool light and changing out the LED driver board. Process looks simple. But water and electricity freak me out. After I install it, is there a way to drop multimeter probes into the water to see if there is any dangerous current running through the water? Which setting would I use on the Multimeter? DCV or ACV? and then just drop both probes into the water?
Or is it going to be relatively safe as the transformer converts the electricty to 12V DC which is not enough to harm you?