[k9cop1512]

TropTrea, and others....

Quick note on energy costs..Formula is Watts divided by 1000=KW
KW x your electric rate (typically around .15 per KW after you figure in all utility charges) now, multiply by the # of hours you operate the lights will give you per day cost. Times 31, per month cost, etc.

If I use the 11 cents you gave an example of. If you have 1 250W MH, with the ballast, you're looking at around 275-300W depending on ballast effeciancy. A 250 MH will cost around 3 cents per hour/ 30Cents per day (10hrs), $10per mo, $120per yr.

I have a 3' fixture. 500W MH plus 78watts of T5 Actinics. W/ballasts, we'd be around 650W. this would =$355/yr @ .15 per kw hr. Led would cost around $120/yr to run. I'd save $240 with out figuring savings from not needing as much cooling!!

Their wedsite says a 3' fixture would cost $1900. With just the savings in lighting electricity, I'd pay for the fixture in 8yrs.

If I change my MH's and T5's once a year, that costs around $250/yr. Add that into the equation of lamp savings and lighting only energy savings, I'd pay the fixture off in 4yrs ($240 energy/yr + $250 lamps/yr) Again, now you could figure out your energy savings on not using the chiller!

There! Being an electrical contractor, I get asked about energy savings all the time. I did this quick, but it should be accurate. Hope this helps! Tim

P.S. As you mentioned, I also do not know the cost or what's involved in replacement of the LED's in the future. I only know they rate this fixture at 50,000 hrs, which is 5.7yrs.