5W LED bulb is equiped by high performance LED.Luminous flux is 400lm in warn white.CRI is over 70.It comes with medium screw base, which can replace incandescent bulb directly.VERY long life - rated to still put out 70% as much light after 30, 000 hours of operation as it does when brand new.Bean angle of this item is 160 degree.Illuminance(LUX) is similar to 400lm