ArakelTheDragon
- Joined Nov 18, 2016
- 1,362
@steam29 I don't mean to offend you, but I think you are doing this with no knowledge of tha basics what so ever. If you are using "12VDC" batteries to power your device, that means the voltage of the batteries might be fluctuating from "11VDC" to "14.4VDC", this is why I asked what are you powering them with. This will change the calculations with a new input voltage. If you have a regulator after the batteris, outputting a stable 12VDC, that will be good.Well I'm hoping to be able to use a barrel jack as the main plug to the board and then bolt it onto a recycled cpu heat sink and then plug it into my dad's solar panel batteries that he set up (he's an electrician pretty much so he's got everything set up perfect) the lights are actually horticulture lights to add some extra supplemental to my space bucket( about 1ft wide walls and like 4 feet tall) this way if I do get it printed (as my first PCB project) I have an actual use for them other than being a pretty cool project to learn basic electricity from. Man I just learned so much from your simple comment lol, so if it's 1.08 you round up to 2w resistor right ? And that's what I would be buying a 2w resistor or a 120ohm resistor? Thanks so much for the help btw