The greenhouse designed to grow flowers and seeding requires light supplementary system.. When the illumination is lower than the required volume, the lighting system will be started to work. The special agricultural sodium lamp is applied.

It has following features:
- Damp-proof, long life time
- High efficiency of irradiance, light output is 10% higher than the normal sodium lamp.
- The blue light increases 30%, which makes better balance of the energy between red and blue light.
- The special matching ballast, trigger and lamps.