Peabody,
As a veteren of Iraq, I have been busy building some more lights in case I go back for six months. Here are my recommendations to make this easier.
Sometimes the region is in "black out" conditions so a red LED light would be a great idea. Infinity makes a single AA which should do the duty. As far as batteries go, AA and D cells are fairly easy to get (at least we had a case of each in the hospital assembledge)
D cell lights last a loooooong time so the Elektrolumens Anglehead light is a must. It uses a 1.25 watt Luxeon LED with Fraen optics and stays at a good brightness over the life of the D cells with the help of a micropuck voltage regulator. 24 hours of continous light and a little more with intermitten use can't be beat out in the desert.
Get him the Swiss Light II solar rechargable flashlight, he can clip it to his collar to recharge it. Should be fine for general roaming around the tent complex and has the cool factor.
2D Anglehead for long run times and very, very bright light, has a red filter if he needs bright red light. Infinity red for blackout and getting around in the tent when others are asleep and the rechargable for low level lighting.
Tell him to collect "dead" AA batteries that people use in their cameras, it helps to feed the Infinities quite nicely. The Anglehead should produce some decent light from the discarded D cells that folks use in their mags.
A few other things to send him, extension cords (3 wire), zip ties and black shower curtains will make his life a little easier. Oh yeah, and those concentrated detergent pill looking things will pack well and not take up much space. Tell him good luck for me!