office ceiling circular fluorescent lamp - Rotational symmetric design, provide comprehensive light distribution and increase light use efficiency- 40% - 70% more energy efficient than common incandescent light;- Use special structure of filament, increase lamp’s life up to 50%;- No flicker and better CRI.Product Features:- 100% Tri-phosphor powder coated;- Solid Mercury technology- Color Temperature from 2700K-6500K, or as customer required;- 1525-4125 lm, Energy Class A