For three phase ac circuits where the line to neutral voltage is known the formula to convert watts to amps is.
300w led light bar amp draw.
Lifetime led lights are quality led lights for whatever your lighting needs might be.
If your led lights bars draw a total of 1500 watts then i suggest a 150 amp fuse.
The current i in amps is equal to the power p in watts divided by the line to line voltage v in volts multiplied by the power factor pf multiplied by the square root of 3.
It was labelled as 100w light bar for a nominal 12v supply.
An example is an led 24 volt globe light that pulls 8 watts which draw 0 333333 amps.
Although led lights are more expensive than incandescent bulbs they last so much longer eventually paying for themselves.
Using line to neutral voltage.
In reality it drew 3 9 a which suggests a load of 49w.
For example the traditional 50w dichroic halogen downlight is only 12v ac but draws 4 167 ampres.
Take an led 120 volt light bulb draws 12 watts.
These 50 led light bars are ip 67 waterproof rated led lights.
Depends on the size of the led light and the voltage applied.
When wiring led light bar relays or switches fuse all positive side wires such as from the positive battery terminal to the light bar switch.
Auxbeam cross series cross 2 series and aux trends led light bars are designed with this technology.
I calculated current draw at 8 3 amps 100w load.
The fuse rating should not correspond to the wire size but instead to the maximum current expected on that wire.
1500w 12v 125 amps but you should add a bit of a buffer about 20 more so a 150 amp fuse is perfect.
I got in a head spin with a light bar i bought for the car.
50 inch led light bar with 300w led power and our lifetime warranty.
An important consideration for rving families with young children is that incandescent bulbs can get dangerously hot while led lights remain cooler to the touch.