White Leds

How long can three white LEDs with AA batteries?

Hello. I'm making a point of sale design and need to incorporate 3 white LEDs. The thing is that they would like to run out of batteries. What would be a good solution for battery-wise if needed for a lasting LEDs 3 months maybe? Anyone?

Select the LEDs, for direct current, multiplied by three months and the size of the stacks to adjust. example (other components needed) 3mm White LED 1.5mc has typical 20 mA dc say 3V (two batteries) means that each battery gives this chart shows Duracell 30mW will last for 100 hours. It takes many many batteries last 3 months! You can 1) reduce the current and light output to extend the life 2) have a timer to turn the night / unoccupied 3) flash lamps may be more attention and energy savings.

White Leds

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