SunBlaster SL0900303 39 Watt 6400K 3' 120V Hydroponic Grow Light Lamp Ballast Fixture with NanoTech T5HO Reflector for Indoor Home Gardens and Plants

Despite having to pay for my reorder for broken product. In the end I did get functional lights within the next day.

I'm using two of these (24 inch) fixtures over a 15 gallon all in one sps dominated mixed reef system. I'm using them as a hybrid lighting fixture along side of my kessil tuna blue and an ai prime hd also running full blue spectrum. I'm testing out a few different t5ho bulbs 3 different brands and they all work with the fixture. don't listen to anyone else on here making it sound complicated when it comes to bulb sizes and what not. a 2 foot fixture will hold a standard 22 inch bulb and yes most bulbs for reef tanks will be sold as 24 inch bulbs but they are actually 22 inches sometimes 21 1/2 inches. but standard ati reef bulbs and all of the other main t5ho reef bulbs will work with these fixtures and the way I have them hung over the tank actually turned out to be visually appealing. the corals seem really happy with the hybrid lighting as well. this is on a grow out frag system. I have sps lps and soft corals in this tank and all is well. I wouldn't have these set up over a tank in any way that they might get wet though. they aren't the most sturdy fixtures on the market but I'm not worried about that. just get them hung and don't mess with them to much they will get the job done just as any expensive fixture would. great for supplemental lighting. I had a lot of shadowing with all of the rock and sps corals and now that's all taken care of. I'm happy with these.

Using it for a UVB light for a bearded dragon enclosure. Pet stores typically sell T8 UVB bulbs but T5's can still be found online.The reflector comes off pretty easily but takes a little practice to get it back on. No big deal if it's going to always stay on or off.There are two styles of clips for mounting. Both styles clip to the top of the fixture. One is a surface-mount and the other has a vertical hole for a chain. For the surface-mount style, you will need a low-profile head on the screw you choose. There's a little room in there but not much. There's nothing to mounting the fixture. Just mount the clips wherever you want them. There's no template to use or anything like that. Once the clips are mounted, just insert the fixture. When using the hanging clips, it's just as easy.We haven't put the enclosure into use yet and we're still waiting on the T5 UVB bulb but as is, the fixture provides perfect light for the 48"x24"x18" enclosure.Structurally, this isn't built like a tank, but it doesn't seem cheap either. Nothing feels like it's going to fall off. It's very lightweight, even with the bulb. Not sure how it might hold up if it was going to get banged around everyday (when used as a hanging grow light), but mounted under the top of a lizard enclosure, I'm sure it will hold up for years to come.

If your going to sell a grow light/ light fixture , there should be a replacement bulb that you can purchase which there is not, the light lasted about a year but it claims it will last about 5 years which apparently is a lie..

My first caveat here is that I have just completed assembly of the overall "light fixture" (seven of these items attached to the "T5 Light Strip") and have not even yet hung it above my seed flats. To this end, I cannot make any comments about the performance of these lights in terms of plant growth characteristics. The science and physics sounds reasonable to me (I am actually a PhD scientist) so I expect the performance to be good...hence the reason that I invested in what turns out to be pretty expensive fixture! However, I can make a few comments about other things.The biggest thing to understand about these light fixtures is that they are somewhat fragile, maybe even "flimsy". I won't go so far as to call them "cheaply constructed", even though there is a temptation to do that. They are light fixtures and not demolition derby cars so I was not expecting to be able to take them outside and bat stones with them. However, if you are going to attach several of them to some sort of hanging bracket (e.g., the aforementioned companion piece from the same manufacturer, the "T5 Light Strip") to create a larger "light fixture", you need to be VERY CAREFUL in how you handle these. For sure, the first thing that you want to do is remove the bulbs before you assemble anything...they are long, thin, small diameter tubes of glass, after all! However, the ballasts themselves and, in particular, the reflectors are also very fragile. Understanding this fragility is important because these seem like they could be EASILY damaged if handled too roughly...as might occur when attaching them to a hanging bracket.This fragility is my biggest complaint. I have used other fluorescent type fixtures as growth lights in the past and found them to be somewhat "flimsy" too so maybe it is simply a "characteristic of the genre". However, these seem "delicate" in addition to being flimsy. If you are simply going to hang these individually or set them on top of a channel in a growth dome, then no worries. If you are going to try to assemble them into some sort of fixture, you need to take GREAT care....and maybe read my review of the companion "T5 Light Strip".Another "watch out" are the bulb connection points to the light fixtures. As for every fluorescent light, both ends of the bulb are simultaneously inserted into the two connector brackets at each end and rotated 90 degrees to make the electrical connection and seat the bulb. In this fixture, there is a plastic, circular, rotatable center with a groove in it that rotates relative to the rest of the bracket. It almost looks like the head of a "big" standard head screw. When this is in the position to insert or remove a bulb, the slot is in line with the slot in the bracket itself (see attached picture "Open-position.jpg"). This makes a continuous slot into which the bulb is inserted. However, if it is in the "active" position, the groove in this center plastic piece is NOT contiguous with the groove in the bracket (see attached picture "Lock-position.jpg").You may ask why this is important. It is important because two of the seven fixtures that were delivered had broken bulbs. The fixtures are delivered with the bulbs inserted and in the "locked" (or "active") position. So, for the two that were delivered with the broken bulbs, I had to rotate the inner circular connector using a large, standard head screwdriver (the tip of a table knife blade would also work) in order to make it possible to insert in a new bulb. I did not notice this at first and kept trying to put a bulb into one of the lamps and it simply would not go. Fortunately I stopped before another bulb was broken! When I inspected it more carefully I found that inner circle of the connector was rotated in the "locked" position and, therefore, there was no way to insert a bulb into it. It is an easy fix but a "watch out" if you receive a fixture with a broken bulb.The "NanoTech" reflector is also seemingly "flimsy" and fragile. I would strongly recommend wearing some sort of gloves while handling these light fixtures. This reflective surface can easily be scratched (as for the fixtures that arrived with the broken bulbs) and smudged with "finger oils". Both will diminish the reflective properties and therefore overall performance of the fixture. Also, the reflectors simply "snap" into position to the ballast. This means that they can come off fairly easily too thereby requiring you to specifically handle them. Wear the gloves to protect your investment!My last comment regards the broken bulbs. As I said, two of the seven fixtures that I ordered came with broken bulbs. I have not yet attempted the nightmare of my life (and the primary reason why I am NOT an Amazon fan), Amazon customer "service". I am guessing that it will be IMPOSSIBLE for me to explain that I do NOT want to send the entire light fixture black but simply need a replacement bulb (which Amazon actually does sell). So, once again, Amazon customer "service" will win because I do not want to waste the time sending the ENTIRE fixture back and waiting for a replacement when I could simply order a replacement bulb. Owing to the nature of these fixtures and the poor packaging done by Amazon (two fixtures per box with no packing material allowing them to freely "rattle around" inside) I am guessing that there is probably a "high incidence rate" of fixtures arriving with broken bulbs. So, either prepare for a battle, a full exchange of the item, or just let them win and buy some replacement bulbs...which you will need (hopefully) over an extended life time of the fixture anyway.

For my african violets it's perfect. Really like the reflector. Some reviews said it's hot. It's keeps the air around my plants around 80 degrees. Not hot at all. I have 8Mature violets under one light with room to spare. P. S. Take off the blue protective cover off the reflector.