Are these plant light bulbs okay for 9 plants?

I do not have the cash to spend over $100 for a plant light system.

http://www.homedepot.com/p/Philips-75-Watt-BR30-Agro-Flood-Plant-Light-Bulb-415281/202766841?N=5yc1vZc5sq

Thanks,

Dom

I hate to make assumption about what this kid is growing but this is a pretty clever idea...

I grow almost exclusively indoors.  Personally, I wouldn't use these round lights.  Just go for the standard $10 4' shop light fixture with a warm and cool florescent light in each hood.  They give plenty of light for veg cycle, and lower them as close to the plants as possible almost touching the leaves.

If your plants are more than 2.5 feet tall, instead go for high pressure sodium for better canopy penetration.

My two cents!

There are a lot of DIY grow light videos on YouTube. I was convinvced to just use standard florescent bulbs with one cool and one warm on each fixture (T5 and T8?). It worked well for starting my seedlings and it was really cheap. The big orange box had the fixtures for about $8.00 and it included the chains for hanging. While I was on YouTube I did find an interesting video:

Ditto the above - I leave my light on 24/7, when the cuttings have rooted and leafed out move them to an intermediate light area prior to full sunlight

Walmart has $11 T8 shop light fixtures.  HD doesn't have any that cheap.  HD does have the cheapest T8 bulbs, though.  For 9 plants you'll need 2 fixtures and 4 bulbs.  1 6500K and 1 2700 - 3500K bulb in each fixture works well, or if you find 5000K bulbs on sale 4 of them will be fine, too.  The 5000K bulbs are usually more expensive, though.  T12s are being phased out so you wont be able to buy them much longer and T5s are still fairly expensive.

There are some older posts about grow lights and the spectrum that is important.