A 60W LED bulb would be turned into a super flashlight with a boost converter, a LIPO, & a voltage indicator.  A key feature is an articulated light which could stand up & point down or sideways.  A reflector has been a bigger problem.  It might have to come from a commercial light & it might be big.

The mane problems this solves are inspecting food in an oven with no light, lighting work, & lighting the bed in the dark.