Showing posts with label torch. Show all posts
Showing posts with label torch. Show all posts

Tuesday, August 19, 2014

LED Torch


We can see when we use torches we cant use it for long time but here I have mention a schema. it shows the way of using a long life L.E.D torch.It gives 80 times longer service.Than normal Torch.





Note

# If you want to use different voltage you can do these modifications.

# Change R3 values as follows, according to the power.

9V - 470 Ohm
12V - 560 Ohm
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