Knuckle Lights are designed to be worn on the front of your hands in a perfect position to light your path and be seen on your next walk or run in the dark Knuckle Lights Original includes150 TOTAL LUMENS The LED pattern is a wide flood beam putting out light in all directions providing a steady even light in front of you that does not bounce even with your arms moving2 LIGHTS PER SET The units are held comfortably on your hands with soft silicone straps The straps are easily adjusted to fit any size hand and even over gloves The units are almost unnoticeable at less than 3 ounces each3 POWER SETTINGS High Low and BlinkingBATTERIES INCLUDED Each unit operates on 2 X AAA batteriesBATTERY LIFE 20 Hours on High Power 40 Hours on Low Power 50 Hours on BlinkingWEATHERPROOF The units can be used in any type of weather and will not leak or failWith Knuckle Lights you can confidently step out in the dark and SEE BE SEEN