LED Power Formula:
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Definition: This calculator estimates the total power consumption of an LED strip based on its length and power consumption per meter.
Purpose: It helps electricians, lighting designers, and DIY enthusiasts determine power requirements for LED lighting installations.
The calculator uses the formula:
Where:
Explanation: The strip length is multiplied by the power consumption per meter to get the total power requirement.
Details: Proper power estimation ensures correct power supply selection, prevents overloads, and helps with energy efficiency planning.
Tips: Enter the LED strip length in meters and power per meter (default 7.2W/m for standard RGB strips). All values must be > 0.
Q1: What's a typical power per meter for LED strips?
A: Standard RGB strips use about 7.2W/m, while high-density or white LED strips can use 14.4W/m or more.
Q2: Should I add extra capacity to the calculated power?
A: Yes, it's recommended to add 20% buffer to the calculated power for safety and longevity.
Q3: How does voltage affect the calculation?
A: This calculator gives watts only. For amps, divide watts by voltage (e.g., 12V or 24V).
Q4: Can I use this for multiple strips?
A: Yes, either sum all lengths or calculate each strip separately and sum the power.
Q5: What if my strip has different power zones?
A: Calculate each zone separately with its specific power per meter, then sum the results.