150 Watt Led Light Bar Amp Draw

Divide the total number of watts by the system s volts.

150 watt led light bar amp draw.

It was labelled as 100w light bar for a nominal 12v supply. Take an led 120 volt light bulb draws 12 watts. This video takes you step by step to quantify the amp draw of the two kinds of lights. For example a 100 watt bulb in a 12 volt system will draw 8 3 amps 100w 12v 8 3a.

An example is an led 24 volt globe light that pulls 8 watts which draw 0 333333 amps. 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. Many switches would be able to handle that but if you are using say our 50 led light bar that has an amp draw of about 17 2 amps which may be too much for that little switch to handle. 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.

Wattage to amperage conversions at 120 volts. 1500w 12v 125 amps but you should add a bit of a buffer about 20 more so a 150 amp fuse is perfect. If your led lights bars draw a total of 1500 watts then i suggest a 150 amp fuse. Each cfl or led bulb typically gives the same amount of light as a 60 watt incandescent bulb while drawing 10 watts or less which is equivalent to a current draw of 1 12 amp.

Depends on the size of the led light and the voltage applied. 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. I calculated current draw at 8 3 amps 100w load. I got in a head spin with a light bar i bought for the car.

Our lowest amp draw led light pod has an amp draw of about 1 4 amps. The difference is significant especially for rvers who do a lot of dry camping. As a result you could end up overheating the switch melting the wires and reducing.