Awasome How To Calculate Led Light Strip Amperage References. When calculating the power of your led strip light, you need to follow the 80% principle. The total power output of the power supply in watts (w) efficiency.
Next, look for either a wattage (w) or amperage (a) specification for the led strip. Determine the power draw of the led strip. However, it is recommended that you make allowances for unintentional overloads.
