F.Y.I. Just popped a channel on one of these nice little packs. (They really are kind of nice for what they are.) THE FOLLOWING IS FOR QUALIFIED SERVICE PERSONNEL ONLY! Having spent 20+ years servicing things, I was surprised to find the BTA16B triac being used on a dimmer rated at 10 amps. (The BTA16 is a 16 amp triac which is a little too low of a safety factor) The BTA24 is a 25 amp version of the same device in the same package. (Mouser part number 511-BTA-600BW Cost $1.84) I will let you guess what I am doing. Note: This is a solder in part, not a job that should be attempted by non-qualified personnel.