1.work voltage:1.9-2.1V 3.lifespan:50,000hours 4.Angle:15-20degree 5mm red led diodes, diffusedColor: redColloid color: ClearEmitting degree: 15-20IV:4000-6000mcd VF: 3.0-3.2Bracket length: 16-18mm or 26-28mmConducting material: GoldSphere of application:commen illume (flashlight, working light, LED artware) 5mm red led diodes, diffused