This is where some math is going to be needed, but this math is even easier than figuring out the fifteen percent tip at restaurants, I promise! So let's say you've picked out a strip already. each strip also lists its power consumption in watts per foot. In our little hypothetical shopping scenario here, you'll be picking out the 5050 regular density strip, and you've decided that for your project you'll need thirty feet of lights. The 5050 regular density LED light strip is listed at two watts per foot, so for thirty feet of light, you'll be drawing sixty watts of power, and as it just so happens, we've got sixty watt power supplies!
That formula again : (Strips Wattage per Foot) x (Total Feet of Strip) = Total power required (Watts)