What are LEDs ? How can we use them for Long Battery Life
Mail from AD
If LED flashes at 5-10 K Hz at even 50% Duty Cycle. It may save some power and improve life. So it is just an idea, it may not solve the problem. The idea was to improve battery life and give uniform light for annunciators. It may not be good for flashlights.
The LED (and Laser) Museum. A site devoted to testing & reviews of LEDs & LED flashlights in all common chemistries.
LEDs and OLEDs
Small lights with big potential: light emitting diodes & organic light emitting diodes.
Light Sources in Electronics
Light can be produced and/or controlled electronically in a number of ways. In light emitting diodes (LEDs), light is produced by a solid state process called electroluminescence.