Power Calculation Formula:
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Definition: This calculator estimates the total power consumption of RGB pixel lights based on the number of pixels and their individual power consumption.
Purpose: It helps lighting designers, event planners, and DIY enthusiasts determine power requirements for LED installations.
The calculator uses the formula:
Where:
Explanation: The total power is calculated by multiplying the number of pixels by the power consumption of each individual pixel.
Details: Proper power estimation ensures adequate power supply sizing, prevents circuit overloads, and helps with energy cost calculations.
Tips: Enter the number of pixels and wattage per pixel (default 0.3W). All values must be > 0.
Q1: What's a typical wattage per RGB pixel?
A: Most standard RGB pixels consume about 0.3W each when at full brightness white, but this can vary by model and manufacturer.
Q2: Should I account for power supply efficiency?
A: Yes, consider adding 20% to the calculated power to account for power supply inefficiencies and safety margin.
Q3: How does color affect power consumption?
A: Different colors consume different power - white (all LEDs on) uses most power, while single colors use about 1/3 of maximum.
Q4: What about 5V vs 12V pixels?
A: Voltage affects current requirements but not total wattage. Wattage calculations remain valid regardless of voltage.
Q5: How do I convert watts to amps?
A: Divide total watts by voltage (e.g., for 5V system: Amps = Watts / 5).