The LumenLite 600W 400 Volt HPS Lamp has been designed specifically for 400 Volt / 600 Watt lighting systems as a replacement for the Philips Master Greenpower. When used in a Pro HPS 400 Volt / 600 Watt system, this lamp will outperform virtually all other 600 Watt lamps and lasts for approximately a year!

• A replacement for the Philips Master Greenpower Lamp
• A superb lamp, specifically for use with Pro HPS 400 Volt / 600 Watt lighting systems only
• Produces the most umols (plant useable light) of any 600w lamp for flowering
• Biggest yielding lamp 600 Watt HPS lamp available
• Lasts for up to a year