Actually, soldiers in the Army get less than the bare necessities. A knife is one example. Soliders generally don't get issued one. Some of the ones available for purchase at the PX are not very.... well, let's just say they're better than nothing.
Same thing with lights.
Energizer makes a penlight that costs about $6 at Target or Wal-Mart. It Uses an LED that won't burn out and it runs on regular batteries.
I would recommend the Streamlight Stylus.... But it runs on AAAA batteries, not a typo. Those can be hard to find here, forget about "over there."