Inova Microlight Inexperienced. Measures 1″ x 1 7/8″. Nearly indestructible plastic LED technology. Affect and water-resistant case with stainless clip. As much as 15 hours of sunshine per set of 2 3 volt lithium batteries, included. Lifetime good Inexperienced LED bulb. 4 purposes. As much as 1 mile visibility. Dangle packaged.