Yes. The KX2 is the head from the E2L Outdoorsman and the replacement LED head for the E2E executive. The E2E, E2L, and L4 are all part of what we at CPF call the "E Series" of Surefire lights, and all of the parts including heads and tailcaps are interchangeable. Depending on how complicated you want to get, some consideration may have to be taken when choosing battery type; but for your purpose it is a direct replacement. Also, the current KX2 (45 lumens) is going to become a two level head around March or April. Just something to think about.