Detailed Product Description Diameter:23mm(25.10mm with holder)Height:9mm(18.75mm)Bottom diameter:8.00mmView angle: 45 degreeTransmittance: 93%Material: PMMASuitable for flashlight, spotlilght,wall washer light,floodlight, downlight ,camera caseSuitable for Edison,Luxeon,Seoul,Lumileds,Everlight etcHave got RoHs certification.