How Many Amps Does 300 Watt Led Light Bar Draw

An example is an led 24 volt globe light that pulls 8 watts which draw 0 333333 amps.

How many amps does 300 watt led light bar draw.

The result measured in watts is the amount of power your leds use. Older led chips found in older generation led bulbs from as recent as 2008 2010 produce less light per watt than the 2011 2012 led chips found in more modern led bulbs. Take an led 120 volt light bulb draws 12 watts. For example if your led has a voltage of 3 6 and a current of 20 milliamperes it will use 72 milliwatts of power.

The difference is significant especially for rvers who do a lot of dry camping. When determining how many lights can be run on a circuit it is important to also account for all other electrical appliances plugged into the same circuit. 1500w 12v 125 amps but you should add a bit of a buffer about 20 more so a 150 amp fuse is perfect. 3 cheap led s can have low mtbf from poor heatsink designs.

To calculate an led s power use simply multiply the led s voltage in volts by the led s current in amperes. When dave connects incandescent bulbs to an amp meter they draw up to 1 6 amps but when led lights are used they only pull about 26 amps. Add up the wattage of everything plugged into the circuit and divide by the circuit s voltage to determine the total amperage draw on the circuit. For example a 2012 7w bulb with a cree xt e chip can produce more light or lumen output than a 12w bulb with an older cree xp e chip.

Equivalent wattage and amperage values at 12 volts. If your led lights bars draw a total of 1500 watts then i suggest a 150 amp fuse. This video takes you step by step to quantify the amp draw of the two kinds of lights.