Seems to be a good unit, not prone to tipping, heat shrink tubing on croc lips, clips and whatnot. I tend to think of USB powered things for things with batteries, but as far as I can tell this device needs to be plugged in at all times. Not bad actually, as it's always ready to go with full power and the lights on. But I can just let the light through so I can move the device without needing a nearby USB power source. It wasn't difficult to put together and they even gave you an oversized screwdriver. But first I tried to attach the alligator clips to the clips with the screws. It took me a while to figure out that this is what thumbscrews are used for. To be fair, this is shown in the photo on Revain, but wouldn't it be too difficult to unfold a page of building instructions? They managed to insert two requests asking for a good rating.