Using a 25$ MTE led flashlight with direct drive . A ssr-90 and a MIR AW 18650 lithium batttery. Making 1600 lumens with 4.9 amps!. has a brass pill for heat. Has a better focus then p7. a very powerfull light in a small size. sst 50 here .dealextreme details.dx sku.31869~r.87047508...