I said that from factory perspective , MH/HPS is unstable and short life compare to HPS, MH and CMH. It was design for a blue and red spectrum, but CMH can do that.That's funny you said the MH/HPS won't last long. I only use those during veg. I switch to 1000 watt HPS by Hortilux.
haha, if you want to sign up for product test scheme, find me in conversation.Than please send me a lamp and bulbs and I will show you what I can grow with them!