I am in the lighting business and want to clear up some claims that are posted about these "super grow" lights. These lights are a purple violet color spectrum induction light. The problem with them is that in order to produce this color spectrum, the glass tubes used in the bulbs is coated with phosphorus so thick, it blocks out most of the lights output. A better bet is to find a induction light at 2700K and 6400K. These induction lights produce almost four times the light output of the purple color ones. The 300 watt purple produces only 12000 lumens the 6400K and 2700K 300 watt light produces 45000 lumens for better light penetration. 2700K and 6400K color fluorescents are already successful in CFL grow lights. The only problem with the CFL's are they don't put out enough light for good penetration yet a 250 watt cfl still outperforms a purple spectrum induction light at much lower price. It's not just lumens the purple spectrum is lacking in but also Umol (PAR) light too. Our test show that the purple produces less than half of the 6400K induction. I am responding to this thread because we don't want these Purple induction lights giving induction lights a bad name and growers giving up on induction lights. We believe induction lights are the future in grow lights and in industrial and commercial lighting applications. It was a great idea to produce a full spectrum induction light, unfortunately it needs to be improved so that it can produce better light output. standard spectrum induction lights also come in 40 to 500 watt versions. The 500 watters produce over 96000 lumens approaching the output of MH 1000 watt bulbs but with more PAR spectrum light than the MH. The best feature of induction lights is that they last 100000 hours with low light degradation. That's over 27 years at 10 hour cycle 365 days a year!! It would be the last grow light you will ever buy!! Check out this link
www.enviro-techlighting.com