Torch Battery Led

Torch Battery Led
DIY LED Flashlight with 1 or 2 batteries.?

I'm trying to make a super bright LED flashlight with 1 or 2 batteries to operate a high-brightness LED. Light with 2 batteries are weak. One can learn how to make their highest intensity. I noted that the LED torch is also available on the market operated only with 2 batteries and they are really bright. You can find out the secret to this? Is there some hidden there or chip in the super bright LED voltage is required less than what I have?

Indeed, there is a power controller chip high power (1 or 3 watts) LED flashlights. Basically, the tension increases, while that the current regulation for maximum brightness without burning the LED. Different color LED connection using different materials with different strains of work, but work of LEDs in the present: you have to control the flow within the specifications or the union of the will burn. The easiest way is with a series resistance but this gives very poor regulation and / or waste a lot of heating power of resistance. An active circuit is the best – if you have enough voltage a simple current regulator works (the LM117 makes a beauty) if the voltage is really low, a voltage converter and a control circuit is necessary.

FENIX LD10 LD01 ULTRA BRIGHT COMPACT LED TORCH REVIEW