PAR-GRO CMH LAMP 315W - 3100K "FLOWERING" Also known as LEC this is the best lighting solution available. CMH/LEC is also proven to be longer lasting. Qualified European PCA (Polycrystalline Alumina) imported from Holland. Superior colour quality - Excellent PPF value. Crisp white light - 3100K (ideal for flowering). Advanced low frequency, square wave technology. Energy efficient, High PAR value. Reduced operating heat. Said to increase plant resin production. PAR-GRO CMH Lamp 315w (Philips PCA) - 4200K "VEGETATIVE" Also known as LEC this is the best lighting solution available. CMH/LEC is also proven to be longer lasting. Advanced low frequency square wave technology Energy efficient, High PAR value Reduced operating heat Increases plant resin production Rated life span 10000 hours Qualified European PCA (Polycrystalline Alumina) imported from Holland Superior colour quality Excellent PPF value Crisp white light 1 YEAR WARRANTY PAR-GRO DOUBLE ENDED HPS LAMP (PHILIPS PCA) Qualified Philips PCA (Polycrystalline Alumina) imported from Holland Provides 35% more available energy than the standard HPS lamp Specifically designed for high frequency electronic ballasts The absence of frame wire eliminates any shadows in the beam For horizontal burning only High Quality Quartz Glass Jacket Do not handle with bare hands Available in 600w & 1000w.