The LED wiring as I understood it as soon as I opened the box only lasted for a small project or two. Cheap PVC insulation not installed properly and I could see it was sticking out of one of the joints. After a short use it broke and shorted out. Luckily he didn't have a USB charger or worse with him. Not worth coming back as I needed it and I will not get my wait time back. I fixed it myself, reassembled the whole thing and used 18650 for power. I wasn't expecting much for $20 but no fire hazard. And it doesn't get any better otherwise. It's awkward to use/see what you're doing. This is normal for small projects, very small ones. And if you're not ready to reverse engineer it like I did, don't expect much and review it carefully before the return date expires.