What buckpuck should I use with a 12 volt 5 amp/hour SLA battery with a Cree MC-E LED? Answered
First: The Cree MC-E LED is rated at 350 milliamps but has a max voltage of 700 milliamps. Does that mean I should get a 350 or 700 milliamp driver.
Two: Onledsupply there are wired buckpucks with external dimming and potentiometers. What is the difference between external dimming and what a potentiometer would do (lower the voltage and so dim the light)?
Three: On Deal Extreme it says driving voltage/current is 3.2V~3.5V, 350mA~700mA. On ledsupply it says "12.8Vf - Typ. Forward Voltage @ 350mA and 13.6Vf - Typ. Forward Voltage @ 700mA? What is the difference between driving and forward voltage/current? What voltage and current comes out of the buckpuck?
I am trying to make a bike light. Thanks for the input