Type A features :
1.Strong sealing (Mosquito-anti, Water-proof,Dust-proof)
2. 360° light-emitting (360 degree beam angle.No dark area.）
3.PC lamp shade (Strong light transmission,soft light,bright)
Type B features :
1.Large emitting area.
2.High power,bright light.(SMD 5730 beads, and many chips design; PC lampshade, strong light transmission,soft light,bright)
3.IC Driver,No flicker,eyes caring.
4.Longer life guarantee (Ic driver not easy to burn out, metal plate and Radiating vents, , good for heat dissipation,extend the spanlife of bulb