Cool Max Wattage For 12 Led Light Strip References. So you need a led power supply (sometimes referred to as a led driver) that can deliver at least 119 watts. This checks out, because there are 5 meters per reel, and 4.8 watts/meter * 5 meters = 24 watts.
This comes down to 3 led per 2 segment. There are 150w, 200w, 350w, 600w and higher wattage power supplies for medium. Although it's not listed here, we can calculate the amperage using the formula p = v x a, where p is the wattage, v is voltage and a is amperage.
