Powering a 10W LED SMD Chip ?
Any electrics enlighten people here on the forum?
Plenty of light from these chips but how to power them from a car battery or equivalent power source producing roughly 12.5 - 13.5V?
Here the specification:
- LED Emitter: 10W
- DC Forward Voltage (VF) : 9v-12 V DC
- DC Forward Currect (IF) : 900mA
As far as i understand they need constant current power source so its not just to plug and play but You also need some kind of a resistor between not to burn the chip? This even if the power source would be exactly 12V? Is this so or am i only making things complicated here...?
For me the the constant current thing is difficult to get, constant voltage is easier to understand. How to calculate the correct resistor (if its needed)
fun on a boat is inversely proportional to size...sort of anyway