Osram - Plantastar HPS Bulb 600W 400V Quest The contactors are checked and

The contactors are checked and tested in the UK

Breaks down dead root matter and transforms it into plant feed

Stored pressure Easy low cost maintenance

Gives control over humidity levels

The product stimulates the plants' blooming signal

Osram - Plantastar HPS Bulb 600W 400V Quest The contactors are checked andOverview Boasting a higher PAR rating than any bulb on the market to date, the Osram Plantastar is a high quality HPS bulb that is compatible with almost any reflector and ballast. For best results, we advise replacing your bulb every 9 12 months. General Information The Plantastar bulb emits 30% more blue spectrum than a standard HPS bulb. Lumen output of 92,000 20,000+ hour lifespan.