These led's anygood?

[Jamesr]

$13.03 - SSC P7 C-Bin LED Emitter with 21mm Heat Sink Base (3.6V~3.7V) - Flashlight Parts and Tools

[FiReBReTHa]

For flashlights, yea.

Reefs, doubt. Its like going to home depot to get t5 bulbs.

[Corvette Reefer]

its all about the color, almost any leds can be used for reefing just some are stronger then others with par vs lumens, but thats a pretty bright led its probally a ton of amps needed for the 900 lumen output. but at $13 a bulb it would be better just to get cree bulbs there are some that have a ton of lumens too that are only $15 too that would be better for a reef tank.

[FiReBReTHa]

Originally Posted by Corvette Reefer

its all about the color, almost any leds can be used for reefing just some are stronger then others with par vs lumens, but thats a pretty bright led its probally a ton of amps needed for the 900 lumen output. but at $13 a bulb it would be better just to get cree bulbs there are some that have a ton of lumens too that are only $15 too that would be better for a reef tank.

Eeehhh..... its like beer, you have good beers and bad beers. They may look the same but on your tongue they sing a different tune.

LEDs emit particular spectrums which affects growth and color. Cree's with the right spectrum are known for their performance and why so highly regarded for reef use.

[evilc66]

The P7 is basically equivalent to the Cree MC-E, just parallel wired versus series or parallel like the MC-E.

They work, but you need to add more blues per white LED to balance things out. For that kind of performance, the new Cree XM-L is a better choice, and half the price.