Eclipse² - The most technically advanced personal mutli-task keylight on the market just got better with the addition of a clip that allows you to attach the light to a ball cap. As with the original Eclipse don't let it's size fool you - this tiny Eclipse ² is jam-packed with big features! Powered by 2 lithium coin cells the high powered LED bulb burns up to 36 hours and has 5 electronic switch settings ranging from low medium & high beam to fast & slow strobe. With its quick release detachable clip new hat clip option and a range of translucent colors to choose from you'll want one for every keychain backpack ball cap and book bag in the house!