This is a simple fixture to hold 3 Fenix 22LD LED flashlights for use in creating a "light bar" to provide glancing light to illuminate dust particles on the silicon wafers.
revised per referenced DCN
1) Refer to http://www.fenixtactical.com/manuals/fenix-ld22-user-manual.pdf for user manual for Fenix LD22 Flashlight.
2) While the LD22 takes regular AA batteries Fenix recommends using high-performance Ni-MH rechargeable batteries.