Hi Old Salt.I bought my T5s from Lee Valley Tools. They were the Sunblasters with the Nanotech reflectors. They have stopped selling the fixtures, although they appear to still be used in their plant stands. I had to really look around for replacement tubes. I did find them in Halifax at a specialty lighting store. If I wanted something other than what they had in stock, I would have needed to buy in bulk. I forget exactly how many, but it was more than I would use in my lifetime.
Except for a mini greenhouse (plant tray, dome, light) our go-to gardening center (Halifax Seed) no longer carries any florescent lighting.
Home Depot only carries one or two types of T5HO bulbs in each size.
The Sunblaster 48" T5HO lights only put out 5022 Lumens when new. They consume 54 watts. Their luminous efficiency is 93L/W, or about half that of the LEDs on the market today. The five year cost of ownership for the T5HOs is more than double that of LED lighting.
I have one of the 16 fixtures that I originally bought left. I use it in the tent with my 'blurple,' to take pictures of my plants for posting here.
Thanks, Steve's is my local supplier. I sold all but one of the Sunblasters I had. That on will go on Kijiji soon, along with my blurple, and a few other supplies I'll never use. Some of it is new, and was acquired for a DWC system I was unable to use due to my well.Hi Old Salt.
The local hydro store (not sure if I am allowed to say it's name here) in Sackville NS sells Sunblaster fixtures and bulbs. They always have a bunch if your having trouble finding some. Cheers!
I've got 2-48"X4 bulb T5HO fixtures and I've had decent results, so I'm happy until I can upgrade to LED. I run the lights 8-10" from the tops of the plants. On the first three crops (autos) I used one fixture for veg and one for bloom. Four plants will fit, but as they grow you might notice better results with only three plants. Once the plants went to flower, I moved them under the bloom set up to finish. In this way I did a continuous grow for three crops. However, on the fourth and last crop, knowing I was going to shut down for a while I moved the fixtures side by side and ran half bloom spectrum and half veg spectrum. This gave me the equivalent of one 8-bulb setup. I was able to fit 4 plants total, otherwise things would have been too crowded. Below is a photo on the left of the last crop and 41 days and how the lights were arranged. The photo on the right was taken about 10 days later, just b/f harvest (I harvested sequentially, as each plant was ready). Total harvest was about 4.7 ounces dry at 50% humidity. Jarred for curing with 62% Broveda, so I suppose the weight might have approached 5 ounces, ounce I brought up the humidity.Hello, I have 4 T5s that are around 17 inches above my plants. What do you guys think is the best heigh for that? Also its about 48 inches long, how many plants do you think I could have growing comfortably below that?
I didn't realize my HO T5s could be converted to LEDs. Very interesting! I found a price online: $162 for a 12-pak, which is a whole lot cheaper than a quality LED setup. I'd only need 8 bulbs, but what the heck. Any comments?I started buying LED's maybe 5 years ago now
Do you have a link?
Those are LED shop lights and not growing LEDs. I did not check the price to compare those against LED grow tubes like what I find at the local grow shops after I noticed that. You will end up with the same problem people had when trying to grow under the old style T12 fixtures years and years ago. The bulbs back then were designed to provide bright light for humans and while they seemed bright enough for us to work under there was not enough for plants.
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Think of it more as you are not converting the fixture over to LED but instead being able to replace the florescent bulbs with LED tubes. Have not found anyone saying that I can't do it so I have been replacing one florescent at a time with a LED tube in my 2 foot fixtures. If all goes according to schedule I will have a couple extra dollars so another LED from the store on Tuesday.I didn't realize my HO T5s could be converted to LEDs. Very interesting! I found a price online: $162 for a 12-pak, which is a whole lot cheaper than a quality LED setup. I'd only need 8 bulbs, but what the heck. Any comments?