well 2 x 100watt fluro bulbs If they made such a thing they would be a little over 100 inches long.
Now if its cpf its puts out the amount of light equel to a 100 watt incand. bulb. Which is not much lightl
If its Cpf bulbs it has the power of about 13 watts florsent it they were straight, but they are not.
If the bulbs were placed next to each outher you could get about .5 sq feet of growing space. The rule of thumb is mim 50 watts per sq ft and past 75 is down hill.
The best use for cpf are in a closet to keep the boogie man out.
Use 4 ft , full service mag ballast, full service cool white for growing and warm white for blooming.
Electronic ballast are only good as landfill , they eat bulbs , they loose there output in a few months.
Even with full service ballast , you need to replace the bulbs every 2.5 months, 3 max.
The more you read about growing pot the more you want to know.
A man with one seed knows it all , the man with a room full of buds wants to learn more.