Hello, I am visiting from the gardening section. I am a commercial grower so have a bias.
But then again, I do enthusiastically smoke my product.
Fifty watts will cover about half a square foot (six inches by twelve inches), the minimum acceptable for the garden is 85 watts per square foot, usually it runs closer to 100 watts.
I smoke a lot, around two ounces per month in extracts, straight bud runs closer to one ounce per month. Regardless, fifty watts will not grow either amount.
The box pictured would be hard pressed to deliver a half ounce of trimmed bud. And that would take what? Seventy days with an autoflower, just over two months? For under 1/2 ounce?
Visit the growing section, there are mini gardens that will actually function and with a little effort can be automated. Some already are and just need copied.
This is definitely the site you want for information on home gardening.