-More indepth about lighting
Germinating peppers don't require any light.
All the other stages require light, adult requiring the most to produce peppers.
Inside peppers can be run on lights 24/7 but most prefer to run on a 18 on / 6 off light schedule as it saves electricity and some think the plants enjoy the "rest" they get in dark time.
Outside peppers enjoy the full sun all day. In Hot climates with full sun (southern us, aus, dubia) they can become stressed from being too hot! It's a good idea for them to have partial shade in times where temp is 100+F.
Peppers love warm temperatures. Optimal range is 65-90 degree Fahrenheit.
Peppers will die in a freeze, do anything you can do to prevent them being exposed. Common ways to keep the plants warm are keeping them inside house, greenhouses / hoophouses, space heaters, and heat mats.
I dont know how much 65-90 degF is, but here its 30-35 degC and at 8AM there is already so much sunshine, the leaves like to hang down. A friend of mine is gardener here and he, too said peppers need a lot of sunshine but when it comes to heat and sun...there can be a too much.