Registered Community Design - 001935081. 12W High Power CREE LEDs. 620lm typical output. 55 Lumens per Watt output allows compliance with the Building Regulations Approved document L2A/B requiring the use of energy efficient luminaires in buildings other than dwellings . Very efficient with a high power factor of >0.9. 35° beam angle. Colour Temperature 2700K warm white & 4200K Neutral White. Lasts 20 times longer than an equivalent halogen lamp (40,000 hrs). Dimmable on most dimmers. Average lifetime up to 45,000 hours. 3 Year guarantee.