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Jade5051 · 01/28/2016, 05:23 PM

@Floyd

I know you recommend running blues at half power, dimmed or diffused. I was going to run my blues in series. I noticed that the blue Vf (DC 3.0-3.4V, 700mA/1W) is different than the red Vf (DC 2.2-2.6V, 750mA).

However, it's my understanding that since the Vf of the red in front of the blue is lower the blue will have the same Vf as the red or slightly lower due to inefficiencies. Essentially the blue will not burn at 100% because it is in series with reds that have a slightly lower Vf. Is this correct or do I need a completely different driver for the 3 blue LEDs?

01/28/2016, 05:23 PM	#731
Jade5051 That guy... Join Date: Nov 2004 Location: Illinois Posts: 1,218	@Floyd I know you recommend running blues at half power, dimmed or diffused. I was going to run my blues in series. I noticed that the blue Vf (DC 3.0-3.4V, 700mA/1W) is different than the red Vf (DC 2.2-2.6V, 750mA). However, it's my understanding that since the Vf of the red in front of the blue is lower the blue will have the same Vf as the red or slightly lower due to inefficiencies. Essentially the blue will not burn at 100% because it is in series with reds that have a slightly lower Vf. Is this correct or do I need a completely different driver for the 3 blue LEDs? __________________ The dream that is now a memory - http://reefcentral.com/forums/showthread.php?t=2550891