# Is this correct? 280 LEDs at 24mA each will consume 6.72 amps total?

I am trying to power 280 LEDs with a 12 volt power supply. The specs are as follows:

Green - 3.2-3.4v 24mA max (x100)

Blue - 3.0-3.4v 24mA max (x100)

Yellow - 1.8-2.2v 24mA max (x20)

Orange - 1.8-2.2v 24mA max (x20)

Red - 1.8-2.2v 24mA max (x20)

Purple/UV - 3.0-3.4v 24mA max (x20)

Are my calculations correct in that this will consume 6.72 amps?

What would be the best solution for powering this many LEDs? I would like to keep the setup as simple and efficient as possible.

Green - 3.2-3.4v 24mA max (x100)

Blue - 3.0-3.4v 24mA max (x100)

Yellow - 1.8-2.2v 24mA max (x20)

Orange - 1.8-2.2v 24mA max (x20)

Red - 1.8-2.2v 24mA max (x20)

Purple/UV - 3.0-3.4v 24mA max (x20)

Are my calculations correct in that this will consume 6.72 amps?

What would be the best solution for powering this many LEDs? I would like to keep the setup as simple and efficient as possible.

same24mA going through e.g. a series of 4, your total requirement is less. If you work on Watts, you can get better theoreticals (24mA):L

All parallel LEDS ARE additive in current, unlike series connected LEDs

Series L:EDs are additive in voltage.

Taking your list, and making a reasonable guess.

30 strings of 3 @24mA

30 strings of 3 @24mA

5 strings of 4

5 strings of 4

5 strings of 4

7 strings of 3

Steve