Specification: 1. Warm white: 2700k-2900k/3200k-3500k, XRE -P3/P4, lumens: 540+/-6% lumens 2. Pure white: 5800-6500k/7000-9000k, XRE-Q3, lumens: 580+/-6% lumens 3. Watts: 5*2w or 3*2w Size: Dia62*80. 5(H)MM 4. Material: Aluminium housing with PC or glass cover 5. LED quantity: 5 pcs 2w high power original USA CREE led 6. Lamp base: PAR20(E27, E11, E26, B22 are ok) Features: 1. There is no harsh glare, directly replacement for traditional halogen bulbs: 50-100w 2. Integrated thermal management system 3. Longlife time more than 50, 000 hours under normal use, especially for office lighting 4. Optimized light extraction system delivery high lumens 5. No RF interference, lead free 6. Long lifetime, - LED features, reasonable driving, no effect from switch on/off 7. Green environment, without any harmful materials listed in ROHS 8. No need maintenance, long life of leds, no trouble of replace parts of normal led bulb lights 9. No flash, AC driving, stable light, protect eyes 10. Good color vision, color temperature can be adjusted from 3000k to 13000k 11. Easy mounting, can be mounted directly 12. High LM with good performance. Dimmable and nondimmable are both ok.