led bulb light smd3528/5050

led bulb light smd3528/5050 Features: 1.aluminum alloy, tempered glass 2.Size:60mm(diameter) 145mm(length).it can be put27 LED bulb 3.angle of refraction:up to 120 140 degree, with strong visibility. 4.Light source: LED packaged by epoxy resin. Technical specifications: Power factor >0.95 Power efficiency >88% Total harmonic distortion <15% System power 3W LED luminous efficiency >90lm/w LED lamps initial luminous fux >9900 Lm Luminaire light efficiency >90% Correlated color temperature 4000k 5500k Color factor Ra>75 Junction temperature <75° .Working environment Temperature -40° 50° relative humidity 10% 95% Protection class IP20 Life >50,000 hours Advantages: 1.Anti-aging, good heat disspation, light-color uniform, good light transmission. 2.Long life and low attenuation. 3.With rated voltage and constant current power supply, it can ensure that the LED bulb works for longer and low attenuation. 4.High brightness LED light source, the color of light is without spot, it can achieve lighting effects. Approval status: CE,ROHS,FCC and PSE