12v 3w led project Answered
I am trying to build a "knight rider" light for my car using 3w led's.
I know enough that I want 2 per section (8 sections total) and to wire the led's in series.
They will be mounted to an aluminum bar, so I might not need heatsinks.
They will be controlled by a "chaser light" sequential controller.
The specs are:
yellow 3w led
forward voltage: 2.9v - 3.3v
forward current: 750 mA
I have researched and found led drivers but they are a bit more expensive than I would like to pay, since I would need
8 of them.
Can anyone help me with what I need for this to work on my 12v dc automobile?
Do I need transistors, diodes?
What resistors do I need (value, wattage, etc)?
I need major help from the electronics gurus.
How do I do this???
I posted this in the workshop section mistakenly yesterday.