I have a 2100 watt transformer to power my 12 volt LED strips. I have 150' of strips at 4.4 watts per foot or a total of 660 watts. I have only hooked up 33 feet so far and find they are using about 1.47 watts per foot. I would like to control the transformer (ON/OFF) using an Insteon device rated for 1800 watts. I think this should be OK, but the folks at SmartHome said no. I think the circuit will be around 220 watts total and therefore the switch would be OK.