No need for the 100's, just get a few 23's or 42's. End stage veggin, you have to fluoros, and 2 CFL's per plant, you will be jamming into the HPS...
Honestly tho, if you wanna save money, get a conversion bulb for your HPS system and put them under that.... You get MH spectrum in an HPS ballast.... Great product for sure. You guys are ready for more intense light...
T5's, even better. I use two of these with 8-6500K bulbs(daylight).
http://www.bghydro.com/BGH/customkititems.asp?kc=HLIFT5NW24&eq=
They are plenty of light to veg with until I move them under a 600hps for flowering
For lighting i say fuck MH and HPS shits are too hot and too expensive. Just get a 105 watt cfl, puts out 6,900 lumens per bulb and you dont need a special fixture and you can put them super close to your plants like 4 inches off. Get like 4 bulbs and you got 27,600 lumens, plants will be very bushy with good buds. Did great last grow.
Lumens dont add mate...and a HPS/MH will kick a CFL's ass anyday of the week, not to mention that 4 of them will use almost as much electricity and make almost as much heat.
Lumens dont add mate...and a HPS/MH will kick a CFL's ass anyday of the week, not to mention that 4 of them will use almost as much electricity and make almost as much heat.
Your plants look pretty good. The typical CFL look to them, but very healthy. They will shoot up great with the HPS for sure. Get it going and flip the switch if you are happy with the height of your plant... It will double to triple in size... Congrats, looks great!