1)Multi burning position version,featuring pressure krypton gasfilled and 3-coil support rings.Life time extended to 2000 hours.

2)Clear or Frosted quartz glass tube.

3)UV-stop version featuring the use of special quartz glass to stop the emission of UV rays.

Feature:Energy saving ,High lumen maintenance,long life,High heat and mechanical resistance

Bulb: Straight ,U sharp ,C sharp ,also could make according your demand.