Z
z_nicknoxx
Guest
This is my first post to CPF to be gentle please.
I've got a hub dynamo and am planning to build a light using one of Martin's circuits. I'm going to start with asimple one and see how I get on before proceeding to more complicated designs.
My question is if I use a Cree xml which has a Vf of about 3v and the dynamo puts out a nominal 6v will the led be damaged if I go too fast? If not, what limits the voltage? Ultimately I plan to use 2 or 3 leds but I'd like to understand the way it all works before going ahead.
Thanks in advance.
Nick
I've got a hub dynamo and am planning to build a light using one of Martin's circuits. I'm going to start with asimple one and see how I get on before proceeding to more complicated designs.
My question is if I use a Cree xml which has a Vf of about 3v and the dynamo puts out a nominal 6v will the led be damaged if I go too fast? If not, what limits the voltage? Ultimately I plan to use 2 or 3 leds but I'd like to understand the way it all works before going ahead.
Thanks in advance.
Nick
