no it defintely looks like an hps...mh's look much differant. The reason why its a rounder hps is because of the wattage. All you have to is look at the bar inside the bulb and you can tell its an hps
Both lights came in on schedule/.....went to Lowes this am and bought a 40 watt....1800 lumen bulb....turned it on and started checking temp/ph in the room, & at about 5 oclock, UPS shows up.......
Turned on the first lamp........150 watt/18000 lumens....and i squinted.....
Ran the other light in series, turned it on.........
MY GAWD!!!!! I had ta put on shades!!!!!
I've done flo grows...................4x 8ft T12's, x2= ?????
But this ROCKS!!!!!!!
You would get a lot more heat, thats for sure...
I have mine wired up now, no heat issue, no problems at all. I have a cpu fan wired up that blows cool air across the surface of the light though. The buds are coming in so much fuller than with my CFLs alone. All in all, best $25 I've spent on my grow so far!