just a quick question but does anyone know of the lifespan of these lamps?

6/8months maybe,im not 100% sure m8

always have a backup bulb m8

the guy from envirolite reckons hes had his running for two years with no loss of lumens.

phew yes i was on about envirolites, i have had two for around 18 months now.
one 2oow in with the 400hps and a 125w in the closet for cuttings etc.
thanks.

had 1 blue and 2 reds (125w) for about 9 months. Blue looks fine still but one of the reds as lost some of it's brightness.

Mine's happily been going 10 months so far...

I used 3 on a grow for about 9weeks then bought 3 more and used all 6 at the same time. You could easily see the difference in brightness between all of the new and old bulbs.

There is no reason why, with careful handling, the bulb wouldnt go on working for many years although your yields will be reduced with each grow

100% defiaintly not true

Possibly true if he's had them running for 2 years continously. Weasel words you see

Definitely not true if there has been normal grow usage - ie on/off at least once a day.

had mine about 4 months now blue is fine but red seems like its on way out or something it looks like its got the slightest flicker or something like i say its that slight you cant hardly notice it but ive replaced it anyway just in case

anyway good luck with all your grows

Are there any signs to watch-out for (other than flickering or simply going-out) that an enviro is on it's way out?

Cheers

Stan

i've been using my 125wt in my veg cab for over two years now continiously .. these are under there at the moment ..

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i was told in the grow shop that they will simply fail .. unlike an hps which will gradually lose its lumen output

i used a blue enviro for 2 years plus on 18-6 12-12 24 all sorts and i still got it as back up. the new one is brighter for sure but credit crunch if only used for veg they will last ages no signs to say but they do last a while.

So would the cfl bulbs last longer if used 24/7 than 20 on 4 off?