Amperage Formula:
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Definition: This calculator determines the electrical current (amperage) required for LED strip lights based on their power consumption and operating voltage.
Purpose: It helps electricians, DIY enthusiasts, and lighting designers properly size power supplies and wiring for LED installations.
The calculator uses Ohm's Law formula:
Where:
Explanation: The power consumption of the LED strip is divided by its operating voltage to determine the current draw.
Details: Proper current calculation ensures safe operation, prevents overloaded circuits, and helps select appropriate power supplies and wire gauges.
Tips: Enter the LED strip's total power consumption in watts and its operating voltage (typically 12V or 24V for LED strips). All values must be > 0.
Q1: Why is amperage important for LED strips?
A: Knowing the current helps select a power supply with adequate capacity and prevents overheating or failure.
Q2: What's a typical voltage for LED strips?
A: Most LED strips operate at 12V or 24V DC, with 12V being more common for residential applications.
Q3: How do I find the power consumption?
A: Check the product specifications (usually in watts per meter/foot) and multiply by total length.
Q4: Should I add a safety margin?
A: Yes, it's recommended to add 20-30% to the calculated amperage when selecting a power supply.
Q5: What if I'm using multiple LED strips?
A: Calculate each strip's current separately and sum them for the total current requirement.