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PhoenixReborn
07-22-2010, 11:38 AM
What would happen if you put a resistor between a buckpuck and an LED, will the buckpuck increase power to the LED, or will the power to the LED drop?
Sunrider
07-22-2010, 11:53 AM
The driver will regulate current until it reaches near battery voltage then top out. You need an adjustable driver for what you are trying to do. ;)
PhoenixReborn
07-22-2010, 12:13 PM
So, it wont work with a resistor on top of it.. Kk So red's out of the question on my non-sound saber
PhoenixReborn
07-23-2010, 03:47 PM
Any other opinions on this one? I'd love to get one from someone whos actually tried it.
Obi-Dar Ke-Gnomie
07-25-2010, 07:16 PM
What is it that you are trying to do?
PhoenixReborn
07-26-2010, 04:02 PM
I have blue, green and cyan rebels. They can take 1000mA, but when you plug that into the red, the red colorshifts and dims, it can only take 700mA max without dimming. Can you plug the red, with a resistor on it into a buckpuck, have the resistor suck up 300mA?
Sunrider
07-26-2010, 04:55 PM
It sounds like the red may be bad. If the thermal pad is poorly bonded they can do this and are quickly damaged. :(
PhoenixReborn
07-26-2010, 04:57 PM
Nope, not bad. I've had multiple reds and multiple cool whites that do this. Their max current is rated at 700mA... Kind-of like the lux3 red is rated at 1400 and the others are at 1000
Jedi-Loreen
07-26-2010, 05:15 PM
But I believe that Fenderbender has said that he over drives Rebels at 1000mA regularly. And it makes them brighter.
PhoenixReborn
07-26-2010, 08:00 PM
Yes, but the reds work differently.
dj2rbo
07-26-2010, 09:21 PM
you mean if given 1 amp they are bright at first then dim the rest of the time?? At least all my rebel reds are like that for me.
PhoenixReborn
07-27-2010, 12:58 AM
Yes, exactly. Can you put a resistor between the LED and the buckpuck? And will it still work?
Sunrider
07-27-2010, 06:40 AM
Can you plug the red, with a resistor on it into a buckpuck, have the resistor suck up 300mA?

No.

I looked at the data sheet & the max for red/amber is indeed 700ma. Bummer. :( You need a 700ma driver.
PhoenixReborn
07-28-2010, 05:02 PM
My 1A driver came. The resistor actually CAN suck up the extra 300mA. While it'll still drain the battery at the same rate, the LED will only get teh 700mA it needs.