If there's any dust, or if the bins aren't stainless, you'll probably find all of the suggested LED lights useless.
I only have to look down in bins and tanks that are about 12ft. deep, and a bright LED is fine for checking out clean stainless, but throw steam, condensation, dark coloring, dust, or whatever into the mix, and you can't see crap.
I'd get a tough incan from a company like Pelican or Underwater Kinetics that hopefully uses batteries your employer will supply. I carry SureFires at work, but only because flashlights are one of my hobbies, and I use rechargeables.
I use LEDs for closeup stuff like backlighting guages when I make my rounds, but they don't do well at any real distance in an industrial environment.
If you're set on a SF, check out the G2 and G3. The finish on aluminum SFs take a beating when the surroundings are mostly concrete and steel, while the Nitrolon models don't show much wear. A pair of 17500 rechargeable lithium ion batteries is a quick solution to expensive batteries for the 3x123 SureFires. A lanyard ring and lanyard is available for the models that don't come with one, and is a good idea--beats dropping your light into a 60ft. deep bin or hopper with a screw running.