The main dif with special vertical bulbs is the glass casing. There designed to eliminate the hot spot directly beneath the bulb when on.

I have a parabolic shade that fitā??s a vertical bulb.

When im using the 600w light for seedlings i just attach to 125w envirolights to the shade.
Tomthehippie Reviewed by Tomthehippie on . hanging your light downward i just game across a person using thier HPS light hanging down, now i never did think this would be a better way to use your light but now it has me thinking........can you possibly get better light coverage having the light between plant or atleast close to it. look at this pic. its nothing more than a 250watt light attached to a cooltube, that is a amazing grow with such a small light. would do you of this way? Rating: 5