If you want to keep those lighting bills down when the time comes to head indoors you might want to make the switch to LED. Good quality LED bulbs light up as soon as you flick the switch and get through up to 90% less energy than the old incandescent ones. So they will pay for themselves in no time.
Which LED bulb do I need?
40 W Bulb ..........450+ lumen LED
60 W Bulb............800+lumen LED
75 W Bulb.............1100+lumen LED
100 W Bulb...........1600+lumen LED
Source: N- Power Sept 2016