The Dewalt DW919 is an excellent device in the wide, wide world of flashlights.  It's bright and very convenient to use when you need both hands to be free to work.  I bought it as a Christmas gift for a friend who had been wanting one for a while.  He's thrilled with it.  I think, though, that this is a rather expensive device in its own right before you have to purchase the expensive 18 volt battery that makes it work. (Note, the battery does not come with it!)  If you already have Dewalt or Black and Decker devices that use this battery, however, you're in good shape--especially if you own more than one such battery.