Is this bulb good for growing seedlings indoors?
Thank You in advance!
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, thereÃ¢ÂÂs 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, youÃ¢ÂÂll probably need several of those bulbs. Also, IÃ¢ÂÂm 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,
Thank you very much for your kind reply!
Is it ok, even if they are T2 bulbs?
Well, if theyÃ¢ÂÂre T2 bulbs, the only difference I can think of would be the heat. I use mostly T8 bulbs, but I do have a few T5Ã¢ÂÂs. I much prefer the T8Ã¢ÂÂs because they donÃ¢ÂÂt get near as hot as the T5 bulbs. IÃ¢ÂÂve actually had the tips of plant leaves get burned when coming into contact with T5Ã¢ÂÂs (never happens with T8Ã¢ÂÂs). I donÃ¢ÂÂt have any T2Ã¢ÂÂs but IÃ¢ÂÂm thinking they might get pretty hot.