Quote Originally Posted by Buddha2408
Another thing I was wondering about is our weather. Because saskatchewan (prarie provinces, Canada) is known to have moderate to high winds, and the sky can be overcast for like a whole week in a row. If I didn't have any back up lights how much would factors like those come into play?
Kinda strain dependent.
Northern strains expect dat kine sing.

If you wish to grow tropical strains, it would be much better to have lights on a timer.
It will also allow a harvest every month if you plan for it.:thumbsup:

Canadian sunlight? One harvest per year, with luck.
'Course, your long day summers can grow monsters.:thumbsup:

What kine lights also depends on several variables.
What do you pay for power by da Kwh?
Could you light-proof the treehouse to completely block outside light?
What's your budget?
Long term growing, or just a few grows?
How many plants?
Once you know those things, lighting choices become obvious.

My power cost is $.50 per Kwh. I plan to grow for at least 20 more years, and ambient temperature is about 80 F., year round.
That's why I use LEDs.
Even though the initial lamp cost is quite high, it amortizes rapidly with my greedy power company.

You, could probably benefit from the excess heat generated by MH or HPS lamps to warm the grow room in da winter.

Out of pennies for the mo'.
Will pontificate later, upon request.

Aloha,
Weezard