Quote Originally Posted by TheGatorViking
Can I do one 600 watt HPS for 1-2 plants? Is that enough? How fast do they burn out?
you should probably start your own thread to ask questions... but to answer your question, 600w HPS is far far far more than enough for 1 or 2 plants.

It really depends on the sq. footage of the space your grow is occupying though - meaning if you keep the plants smaller, you can grow alot more than if you want to grow them to be 4' or more.

if you read the first post of this thread, then you should know that ideal is 5000+ lumens per sq. foot

a 150w HPS light puts out ~14000 lumens, which means a grow space of 3 sq. ft (say 1.75'x1.75') that would put you at just a tad under 5000 lumens per sq. foot. (like 4600ish).

a 250w HPS will kick out ~28000 lumens, which basically means you can double sq. footage compared to a 150w HPS

a 400w HPS kicks out ~50000 lumens which again means you can almost double your space compared to a 250w. with a 400w you could do about 3.33x3' space.

but going by the number of plants is just not good, as there are so many grow-style factors that will come into play with regards to how many plants you can fit into any given space.
syde00 Reviewed by syde00 on . Answers about CFL, HPS, How Much Light... Although I'm still kind of a new poster, I keep seeing a lot of the same comments--many of which are answered an Dr. Khronik's excellent El Cheapo Guide to Lighting. But there are a few things I'd like to add in regard to watts, lumens, cfl, hps, and efficiency and how much light you need. Maybe this should be stickied? Watts have nothing to do with light or growth. Watts measure how much power a light fixture uses to produce light. You can tell how efficient a light bulb is by looking Rating: 5