Power: 4W Light source: Epistar Lamp base: E27/E14/B22 Beam angle: 200 Input voltage: 110/230V AC Lifespan: >25,000 hours Luminous flux: 350lm Working frequency: 50/60Hz Luminous efficiency: >80lm/W Lampshade: frosted Color temperature: WW/NW/CW/B/G/R/Y/A Materials: plastic coated aluminum housing and PCB board Type: dimmable Size:45x78mm