mh bulb problem

So I came home from work and the first thing I like to do is look at my girls. I open my tent and the light is off. I go to my wife ( who has been home all day and knows their schedule. ) and ask if shes noticed the light off. she said it was on an hr ago. Not sure if it cracked when I opened...

Hey guys so i got this one floodlight 400wfrom afriend it has mh bulb in it its this brand isit suitable for veg ?https://uk.rs-online.com/mobile/p/metal-halide-lamps/6997200/ it sure is hot

I have a 1000w MH bulb that has this sort of.... gooey brown and clearish buildup on top of the bulb - not at the base, but right on top about an inch away from where the base of the bulb starts. I almost thought it looked like the bulbs glass had blown up on top but Upon inspection it's...