Arc tube delivers high efficiency and optimised for High PAR output.
For complete or additional artificial lighting of plants.
For use in small to medium scale greenhouses and indoor gardens.
Needs a 600 watt powered ballast to operate.
This is a Dual Spectrum bulb like the Sylvania GroLux.
Although it won't last as long as the superior GroLux.
Other 600w HPS Bulbs