05-28-2014, 03:59 PM
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Again, thank you. The T12 is 1.5 inches diameter, 12x1/8th.
Found this though, which explains the mandated changes:
"T-12's are disappearing. After 2012, they will no longer be manufactured"
I just don't get why people think LED is so great. Petco has them, but for 36" and 25w would cost $170. A T5HO is just 90 and bulbs should run about 36K hours. Heck by then LED will have advanced in effeciency and cost that it would make more sense than just novity today. Replacement bulbs are only $15.
It appears hoods for just T5 are already hard to find. So best bet seems to be T5HO and either get single strip or double and expect to disable one light.
I thought I would be ok with dual as I was running dual T12's. I even bought 2 duals, but soon discovered all 4 did was grow algae. The bacteria, non algae type. Other sites were saying that 3200 lumens each and 28w T5HO gives 5000 lumens, or about 36 PAR.
Ah, I see, two would be 10,000. Way too much. So either double for 2 bulb types and switch which is active, or one bulb hood and switch bulbs.
Thank you for getting me thinking.