LED Patents - Action Needed!

[StirCrazy]

Originally Posted by sphelps

LEDS can't touch the intensity and penetration of halides, for clams and SPS halides win.

actualy they can and have less frop off through the water colume. people switching from MH to a good LED set up are finding they have to dim there lights to between 40 and 50% and slowly increase them over a couple weeks to prevent bleaching. quite a few get to about 75-85% and leave them there as they are getting better growth and color than they did with there old MH or T5s.

Originally Posted by sphelps

LEDs do burn for 10 years but halides will also burn for 5+ years but you still have to replace them every year. My guess is that LEDs will require replacing somewhere around 3-4 years and the cost will be ridiculous, likely cheaper and easier to buy a new fixture.

And who really cares about dimming?

MH have a drop off of 20-30% in intensity and they also have a color shift after 1 year aprox. thats why it is recomended to change them yearly.
LEDs are rated for 11.4 years at 12 hours a day and at that time they will have a 30% drop off in intensity and no color shift. so you can guess what you like but just shows you haven't read about them or bothered to look up the specs.

I don't know.. I always wished I could do a gradual ramp up in the morning over say 2 hours for my sun rise instead of the 2 stage sun (actinics then MH ) then the reverse for night time..

Steve