Philips Son-T Pia Green Power 600W HPS is Philips best HPS lamp for plants, ideal for the growing and flowering stage. PIA (Philips Integrated Antenna) technology offers maximum luminous flux and longer functional life. It has an extended red/yellow spectrum necessary for the flowering stage, but it also has a 30% blue spectrum. These HPS bulbs have a very long life, with a loss of only 5% and a light efficiency of about 87,550 total lumens.
Increased light output: 87, 550 lumens
E40 ceramic socket
To use only with a 600W ballast
Suggested area from 100x100cm to 120x120cm