10W UV Black Light Bar - 1ft USB/DC Powered LED Blacklight Strip for Glow in The Dark, Fluorescent Paint & Posters - Perfect for Bedroom Decor, Parties & Wall Mounting (2 Pack) - Illuminate Your Nighttime Events, Home Theater & Glow Parties

I contacted and said one of the lights stopped working. In less than 24 hours a new one was delivered. During that time I was embarrassed to realize I had accidentally unhooked the cord from the light. Needless to say...I will keep them both. Thank you for the amazing quick action to my problem.Purchased these specifically bc they had a USB power cord. We purchased 2 packs (total of four lights) and plugged them into portable battery packs, like you would use for your phone. My daughter's booth was GLOWING at night markets and people loved it. Perfect and portable.We taped a bar inside the crates and then used the other ones elsewhere. They put off a powerful glow and just barely get warm, even after being on for hours. Would purchase again.Okay my wife and I recently started collecting antique uranium glass and these lights work very well in a display case and do not take much roomZ. We are up to 4 sets and the work great. They use a usb power cord so if you are going to use them like we do, buy some plugs on here that take multiple usb plugs or buy a small usb power tower. We have 4 sets of theseSmall but bright. Very light weight. Easy to stick up anywhere.Strong light used it for black light artwork.We used this in our hotel room for my girls glow in the dark bday and a lot of their decorations didn't really glow because we had to use the USB port which was on the other side of the wall, but overall it's an awesome black light.For the money, these are pretty alright. They are lacking in the UV potency department and it takes multiple strips to get the desired effect on things that are painted. As you can see, uranium glass glows vibrantly so 10/10 for those. But for other stuff, needs more umf. The power cords are too short for what I needed so I had to order some USB-C extensions. So I can put them lower in the unit. The cords also need to be non-reactive material so it doesn’t look like a rat’s nest of glowing cables. The magnets are a good design. Makes it perfect for use in a IKEA Detolf using the display’s frame as a holding point. They need to include an appropriately rated power supply for the units. BEWARE if you use anything not rated for MINIMUM of 10W it will make the supply get VERY hot and be a fire hazard. I found the dual port Ankor 24W power brick from Walmart works perfectly without any heating issues.So over all 4 stars because I wanted more potent light to illuminate my figures and glass.Love them