This is a very straight forward light gun. It consists basically in a case, and ballast.
The ballast is quite noisy. If silence is important to you, you may consider use a UV LED gun instead. The metal case is quite thin and it looks like it will bend easily.
I was expecting a lot more power (I use it with a 400W lamp), in fact the range is just enough for maybe 30m.
It is also a bit heavy, it weights almost 10 times more when compared to some LED UV Projectors.
Be careful when comparing LED light power with other types of lamps because the announced watts refer to power consumption and not light intensity (like also happens with the lights we use at home)