If its not metal halide then it wont offer any more benefit than your average halogen for viewing defects.
What are you looking to use this light for? They do make halogen lights that are about the same size.
I want this light to light up the area I'm working on. yes I have a halogen that size. my garage space is very limited so a tripod halogen is out of the picture.
If you already have a halogen that size then I would stick with it over that DeWalt. Although that DeWalt would make a nice light when doing interiors since it wont get near as hot.