I was very skeptical when I bought this Blue Devil Head Gasket Sealer, but not anymore, it works and it works very well, just as it is advertised.I removed the thermostat and did the flush to get out any rust and debris. I partially filled the radiator with water and slowly poured in the Blue Devil while the engine was running. I had to do it twice, because one bottle wasn't enough to make the seal on the first try. It was working, but it would lose the seal and the engine would heat up quickly. I could tell it was working, but it seemed to me that there wasn't enough of the Blue Devil in my system, because it would fail and the engine would heat up, then it would seal and the engine temperature gauge would cool down, then it would fail and the engine would heat up, as I was sitting in the driveway watching the heat gauge while the engine was running.

The light comes just as pictured and just as describe my only hope was that it were longer. this will work for a small space, closet space with not a lot of room. The light shines bright, comes with usb to charge it so it does not take batteries of any kind it is USB charged, i am not sure how convenient this is due to the fact that you have to stick the light to the wall, you would have to unstick it every time you need to charge it unless you use an extension cord each time as well. I did receive this at a discount for my honest review. The light works great does what it is suppose to do design is great buttons are functionable, I would have liked another power source other than a usb to charge it.