I checked out one of the SWAT balistic helmets for you. It appears to be a "standard" LED headlight, but the fabric band has been sewn to the fabric cover (usually camo, but ours are flat black) that covers the entire helmet.

Glue two little blocks--one inch square--oops, 2.5 cm square--just above the lamp in front and just above the strap in back just to keep it from riding up. Could be as simple as a douple layer of corrugated cardboard. Check it every now and then for security and reglue as needed. I am a big fan of hot melt glue for something like this.

Or add a little sticky-back Velcro to the helmet and lamp. Cushy side on the lamp in case you want to wear it on your forehead some time.

using glue can compromise a plastic helmet.
The glue and clips are designed to be used on plastic wildland helmets, by the manufactures of helmets... and it is a HARD HAT <img src="/images/graemlins/grin.gif" alt="" />!

Zip ties in the slots over your ears. I used this style of hard hat when I was doing industrial installs. Two little zip ties in each slot, and a pair of minimags. You might be able to do the same with yours, but with the strap through the loops rather than the lights I use.

I'm claustraphobic. :P

If it has a slot in the sides for a chin strap, there is a bracket which snaps into that and holds the Streamlight 4AA. Since this light is rated IS for explosive atmospheres, you might want to consider that for SAR work where a hardhat is required. We use it in a chemical plant which is classified as Class 1 Div 1&2 since it is one of a few lights rated for that. Just a suggestion.

If using velcro, I have found that the hook part tends to get caught on all sorts of things,i.e. any fabric, jacket flaps etc. It won't hold tight on other things, but it is really annoying. I have found that a good way to use velcro is to put the loop part on the more mobile part & the hook part on the more stationary part. Examples: the loop part on the ice scraper & the hook part on the inside of the truck door, the loop part on the tv remote & the hook part on the coffee table. This way, when the remote is on the afghan* on the couch, it won't tend to stick to it. * blanket-type thing, not a person from Afghanistan.

yes...get a spade mounted lamp. It will be able to go from helmet, to headstrap, to bike, other things in a snap that way.

Sorry to bump this old thread, but by reading the SHOT 2007 report, I noticed the part where Doug talks about the ADAPT mounting system that's available for use with all existing Petzl Tikka and Zipka headlamps.

Sorry if this is old news to some of you, but I just yesterday discovered this item... wished I had last summer ! *shrug*

Petzl ADAPT system

I recently noticed that Princeton Tec makes an "industrial headlamp" version of the EOS which ships with both a standard elastic strap and a low-slip rubber strap for about $3 more than the standard EOS:

http://www.brightguy.com/products/Princeton_Tec_EOS_LED_Headlamp.php#2 (scroll down to the bottom)

I have one on my hard hat for work. use some stick on velcro. one piece directly behind the light and the front of the hat and one on each side. make sure you put the soft side on the light in case you are going to use it for other things without the hat.