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Quick bulb confirmation

Posted by Joe1q2w3e none (My Page) on
Fri, Apr 4, 14 at 18:07

Hi there!

Is this bulb good for growing seedlings indoors?

Thank You in advance!

Follow-Up Postings:

RE: Quick bulb confirmation

Hi Joe and welcome to GardenWeb!

Well, most folks use the tubular fluorescent bulbs because they can get so many more plants under them. However, if you just have a few seedlings, there’s certainly nothing wrong with using the CFL type bulbs. The Philips bulb in your photo should work just fine. 6500k is great for vegetative growth. Depending on what kind of seedlings (and how many) you intend to grow, you’ll probably need several of those bulbs. Also, I’m sure you realize that the bulb needs to be mounted in a good reflector, to concentrate those 1450 lumens onto your plants and not the walls :-) Reflectors with vent holes, to let the heat out, are best.

Hope this helps,


RE: Quick bulb confirmation

Thank you very much for your kind reply!
Is it ok, even if they are T2 bulbs?

RE: Quick bulb confirmation

Well, if they’re T2 bulbs, the only difference I can think of would be the heat. I use mostly T8 bulbs, but I do have a few T5’s. I much prefer the T8’s because they don’t get near as hot as the T5 bulbs. I’ve actually had the tips of plant leaves get burned when coming into contact with T5’s (never happens with T8’s). I don’t have any T2’s but I’m thinking they might get pretty hot.


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