The answer to these military specs was the NightHawk. Tiny and light enough to wear on your finger, NightHawk projects the light where you need it yet still allows you use of all your fingers to complete a task. The white LED model casts a low intensity narrow beam, while the output of the red or yellow is high intensity. In addition to now boasting an updated switching mechanism, NightHawk now comes with a built-in, removable hat clip for added placement versatility. The velcro strap is adjustable.
Lifetime warranty is offered from the manufacturer.