The G.E Lucagrow HPS lamps offer a compliment or complete substitute to natural light. The High Xenon Gas Fill in the lucagrow lamps give up to 20% more light than standard high pressure sodium lamps and have a long life of up to 28,500 hours. The Lucagrow lamp maintains 90% light output over the life of the lamp and is fully interchangeable with other HPS lamps. 
• The 400W G.E Lucagrow HPS lamp will put out 56,500 lumens with a colour temperature of 2,000K.