I was given a bunch of track lighting that uses CMH (ceramic metal halide) bulbs. the casing for the fixture itself is a spotlight. right now I have a 2 foot x 2 foot area with 4 of these spotlights CMH bulbs on them and they're ready to go into flowering stage at 28" high. I was wondering if this is a decent setup and should I add more light? (I have probably 20 more fixtures and bulbs). Here is some info I found out about the bulb:

GE ConstantColor CMH
CMH20/TC/UVC/U/830/G8.5 (info from box)
3000 kelvin color temp
1650 lumens
LPW efficiency:80-105
color rendering:80-93
color temp:3000-4200

website with info regarding bulbs: http://www.gelightingsolutions.eu/do...H-Dimmable.pdf (go to page 28 for info regarding this bulb. first one in list)


Was also thinking of adding a light or 2 to the sides (these are spotlights after all) to get all-around light, but so far it seems to be going good with just the 4 lights on top. Am hoping to start flowering in a week or two, so my questions are:

1. is this a good bulb for growing? veg? flower?
2. how many lights per sq. ft? (in case grow area increases)


right now only using bagseed, but will have some cuttings soon, so I want my getup as good as can get for the cuttings. Thanks for your help in advance