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MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
Jan 29, 2015

Powering My New LED 10-Volt 10-watt R.V. Lights

12 Volts over-drives the chips by a bunch. Three diodes in series in a PITA. I have a bunch of LM7809 regulators. With a silicon rectifier biasing the negative...or not. Can this regulator surv...
MrWizard's avatar
MrWizard
Moderator
Jan 29, 2015
Each ROW only consumes about 1W since LEDs in series share the same amount of wattage like a resistor in series


If each LED is 1 watt, the total is 9 watts, Not 3 watts
Current is the same and not added in series but the voltage is increased and the wattage is totaled for each string then added together for the board
Resistance in series is added so is wattage, resistance in parallel is reduced

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