Dimmable with an ordinary dimmer or switch. For mains halogen GU10. Rated life 10,000 hours. A Megaman quality product. Dia. 50mm. L76mm. Warm White = 3000k. Cool White = 4000k. 11W = 50W GLS light output. Energy Rating ‘A’. With the integrated patented cooling tube a high luminous efficacy is maintained throughout the lamp life. Megaman Ingenium technology features 600,000 switching cycles and shorter preheating time. Energy saving £14.24 Year. Reduced CO2 (kg/year) 61