Academy Stores has a headlamp called the INOVA STS, by Nite-ize. I can not review it right now, but the specs look interesting. It cost $ 35 plus tax.
It is black in color, but the lens ring comes in a choice of either, blue grey or orange. I would presume that this headlamp should be acceptable as a primary source of light in any Texas cave, and as a back-up to keep in the cavepack for expedition trips to the big caves, because INOVA has a reputation for durability. David Locklear