I haven't tried it. It looks neat, but if my figures are correct, it's more expensive than the original Mag-lite. The cheapest price I saw for it was US$19.95 on-line; one European site was charging US$35. I think it might be cheaper just to buy a LED flashlight new and keep the Mag-lite as a backup. <img src="/images/graemlins/confused.gif" alt="" />