Been a SF whore for about 10 years. M2, L7, L1 cree, LX2, E2DL, x300, 6PL (Malkoff M61). There have been more but I sold a few...had a 8AX, L5, G2L. Surefire lights are working lights...tools. My only lights that aren't SF are a Malkoff MD2 (kicks ***!) and a Nitecore DI (mine actually works well).