Quote:
Originally Posted by StirCrazy
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.
|
All talk my friend, I'd love to meet these people.
Quote:
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.
|
Has anyone tested these claims, I've read them but I don't buy it. All LED lamps used in residential applications are rated for around 10 years, so how can they last as long in aquarium applications. If they did wouldn't they last longer in other applications? Part of the reason our aquarium lamps don't last as long is due to the conditions they are used in, was this considered?