Some basic Power LED question for building a simple LED board Answered
This question is coming from a total rookie in the field of electronics, please keep that in mind :)
I need to build a simple multi-LED board, but I lack some essential knowledge about electronics.
The LEDs I need to use are 5W IR High Power LEDs:
DC Forward Voltage (VF): 1.4V
DC Forward Current (IF): 1400mA
Maximum Pulse Voltage: 1.7V
Maximum Pulse Current: 2000mA
I would like to build on the board three pieces of this LED, with a momentary switch. And I just realised I will probably need some kind of "driver" circuit - whatever it is - to use the Power LEDs. I'd rather buy one from eBay, than make myself one :) Just need to know what type I need.
The input voltage is a 12V DC battery.
So long story short: could someone help me out with this simple LED board?
How many "mAh" should the battery have to power these three power LEDs for about 1,5 - 2 hours?
I am aware of a 5W probably need some cooling, I will use a heatsink.
If someone could draw me a circuit for this project I would be amazed :)