julianf
Member
- Messages
- 8,003
- Location
- devon, uk
If I have 4-off 144w "12v" led spots on a vehicle, that supposedly gives 576w
So, at 12v, that's 576 / 12 = 48a
But, where I'm confused is that running vehicles hover at more like 14.4v.
576 / 14.4 is 40a
But..
Does it work like this with led lamps? The LEDs themselves are going to be 3.somthing volts, and the power to them is regulated in some way accordingly.
So, does increasing the voltage actually reduce the amperage, like it would do with other loads, or does it actually make no difference?
I'm thinking the latter? Ie the units would draw (combined) 48a whatever the voltage?
Is that right?
Thank you.
So, at 12v, that's 576 / 12 = 48a
But, where I'm confused is that running vehicles hover at more like 14.4v.
576 / 14.4 is 40a
But..
Does it work like this with led lamps? The LEDs themselves are going to be 3.somthing volts, and the power to them is regulated in some way accordingly.
So, does increasing the voltage actually reduce the amperage, like it would do with other loads, or does it actually make no difference?
I'm thinking the latter? Ie the units would draw (combined) 48a whatever the voltage?
Is that right?
Thank you.