Using innovative Swipe to Shine touch technology, the INOVA Microlight STS provides easy, instant, and ultra convenient LED illumination with just a quick swipe of your thumb. Swipe to Shine dual electrode capacitive sensing technology eliminates the need for a button or switch. Thumb grip pad allows for non slip control. Four lighting modes high power, variable dim, low power, and strobe offer the right amount of light in any situation. High power mode provides 16 lumens 9 hr. run time low power mode provides 2 lumens 64 hr. run time. Includes a versatile stainless steel double gated S Biner clip for secure attachment and easy release. Durable plastic casing is water and shock resistant can withstand impacts from up to 2 meters. Powered by two replaceable 2032 lithium batteries included. Dimensions: 3.18 x 1.09 x 0.43 in. 8.08 x 2.77 x 1.09 cm. Weighs only 0.53 oz. 15 g. Due to federal shipping restrictions regarding products containing lithium batteries, this product can only be shipped to the 48 contiguous states. It cannot be shipped to Canada, Hawaii, Alaska, Catalina Island, Puerto Rico, APO, FPO or international addresses. Thanks for your understanding..