Edison Clear Bulb LED Filament Light Bulb A19 E27 4W      FEATURES:   1. LED Filament Bulb close to the traditional incandescent bulbs,       like emitting angle, color, weight, appearance etc.    2.The bulb shape is simple and elegant, 360 ° Beam Angle and has a LED light bulb       high brightness, long life, low energy consumption, environmental protection and       other advantages.   3. Sapphire substrates is much stable than ceramic substrate and metal substrate in transmittance,     thermal conductivity, strength etc.   4. Using RC Buck drive power, stable performance.   5. Different bases optional: E14/E12/E17/E27/E26
6. Using high quality level cob led reaching 110Lm/W max. 
7. Glass cover w/ high light transmittance ratio.
8. Long lifespan:30000H
9. High CRI: >85    10. CE, ROHS, ERP, certificated. 
11. Warranty: 2 years
12.No risk of mercury emission, environmental friendly.                   Product Description     POWER: 3.2-3.5W Input Voltage: 110-130V/220V-240V Color Temperature: Warm White
Working frequency:50-60Hz  Luminous FLUX: 440lm
Luminous Efficiency: 110lm/W Beam Angle:348 degree Color Rendering Index >85Ra IP:20 Lifetime:30000h