Barrina UV LED Blacklight Bar, 22W 4ft, T5 Integrated Bulb, Black Light Fixture for Blacklight Poster, Halloween Decorations and Christmas Party, Fun Atmosphere with Built-in on, Off Switch (4-Pack)

I’ve purchased these 3 times. They are great! Easy to install I tend to only use them for Halloween and I actually hang them on the ceiling with the Velcro command strips! They never get to hot. The colors are perfect the more the better in my opinion I get the largest size and they are perfect! I will most likely purchase another set this Oct again to have enough for our large basement! Great value for the price as well!

Love the product, lights look great.

Work GREAT. Very bright. Used to mount under arcade games in my arcade room.

Look like they are going to work. Ty

The 48" version of these lights are actually only 46" long, which isn't a big deal if you just want to use them for fluorescence and other general purposes, but it's something to consider if you plan to use them for exposing alternative process prints (which is what I use them for), screen-printing plates, etc. Your final coverage area will be slightly smaller if you mount them length-wise in a UV exposure unit setup as I did. Beyond this one caveat, though, they're great lights at a fair price.They come with several connection/daisychain options, including connectors that let you butt the fixtures end-to-end up to 8 in a row from a single power input (you could probably do more, but that would pull quite a bit of power through all of the fixtures, which might cause premature failure, so I wouldn't risk it), 4-foot cable connectors, and even just individual power connectors with inline on/off switches. Some have knocked the metal clips that come with these, but I found them to be fine for mounting to flat plywood. I don't think I'd trust the screws in drywall or on ceilings, though, since they're really short. Get longer screws if you want to mount them to such material or surfaces.They put out a lot more visible light than fluorescent blacklights, but my goodness do they ever put out a lot of light overall, including UV light. Each bar uses 22 watts, and since LEDs have about a 6:1 ratio of light per watt compared to incandescent, this is roughly equivalent to the light output of 132 watts of incandescent light per bar. That's pretty great. And, since the UV light these things produce is in the 395-400nm range, they're less dangerous than fluorescent blacklights (the purple kind), which put out mostly 365nm UV, which can still cause freckling and even mild burns at close range when a lot of them are used, as I do with my alternative process photography.I've included photos of the exposure unit I built using 16 of these bars to give others who might want to use them for this purpose an idea of how they can be set up. It's pretty easy, and much less bulky/heavy than using fluorescent tubes while also being much less prone to breaking, since there's no glass, only metal housings with durable plastic lenses and end caps.Overall, I give these lights a 4-star rating, dinging them 1 star only for their being 2" shorter than the advertised 48" length. Also, they ship in their factory box without any additional protection, so they can be bent and otherwise damaged pretty easily in transit. One of the four sets I ordered came bent like this, so I had to exchange it for another, but Amazon makes that very easy. This lack of extra protection is a shipping issue, though, not a product issue, so I didn't ding them for that.I highly recommend these both for fun and for more critical uses. They're easy to install and use, and their installation options and versatility are far superior to fluorescent fixtures while also taking up less space and weighing less.I'm highly satisfied with these lights.

Brighter, quieter and more efficient than my florescent version UV lights.I've had two florescent versions of the 2'length UV lights and they worked great for years. Then one died and the other still works but is faint.When I got these (4 pack of 2' lengths in white), I tested them and they are all much brighter and bring out much more color.They're so much more efficient that I only need one of them in a room vs two of the older style. However, the older style does look a little more classy and softer.Either way, I'm glad I tried these and would recommend them.

They work good. Was very easy to install. Our uranium glass cabinet looks great.

These lights are easy to use. I used the sticky fasteners that came with the set. They stuck very well. Once they are down, you are committed, so make sure you are happy before you attach them.