Philips, GreenPower SE 400V EM HPS Bulb 600W

This high frequency 600W HPS bulb from Philips GreenPower gives you a high light output and is perfect when you grow in the flowering phase. It has a burning life of up to 20,000 hours and is compatible with high frequency ballasts and all reflectors with a E40 connection. It has an E40 socket for quick and easy installation.