POWER: 4W-9W LED QTY: 64PCS-156PCS LUMEN: 320LM-860LM CCT: 3000k-3500k, 4000-4500k, 6000k- 7000k *New patented product *Long life span, low light attenuation. *UV &Hg free, green &energy saving. *Similar to the down light, directly replace the traditional PL energy-saving lamp of inductance. Ballast. No changing the old electric circuit of the building. *Work stable between voltage fluctuations of 30%, keeping good brightness. 85-150v, 185-265v wide voltage is available according to requirement. *Quick response, reach the peak brightness within 0.5S Resistant to outside temperature *Surface temperature is half of transitional energy saving lamp.