If the bulb is using 40 watts (and claims a higher equivalent wattage), the you'll be able to grow those under a .1 meter square area, or about 9 of the blue party cups in my pic.
They will outgrow that fast, which is why I use a total of six 48-inch long T-12 fluorescent tube lights to get them ready for the 600w mH or 600w HPS light.
They have two tubes each fixture, at 40watts per tube (80watts per fixture), and I use 3 fixtures for a total of 240watts.
Each fixture is about 6-inches wide (15.7cm) and 48-inches long (1.2m).
But you need a wide enough place to hang them.
You can also get High Output T-5 fluorescent fixtures with the same wattage but only half as long., so they will work in a smaller space.
There are LED lights, too, if you have the money for them.
Lots of choices, just depends on the space you have to grow in, and how much you are willing to spend on equipment and supplies.
