A high pressure sodium mixed with a metal halide to give the best absorption by plants on the poly mesh of sodium or metal halide.
So, yes, we lose a little bit of lumens. But compared to a 400w hps which releases 450 SL, is optient 25% yield in addition to its rate of around 585nm. So what gives it a rendemant £ 100 PER like ECO bulbs.
Finally, you are winning more and this bulb permettrea you get the best vegetative and floral market quality.
Try it already adopt it.
Available in 400, 600 and 1000W.
Unit 7, KPC Business Centre
TN24 0BP Ashford, kent