gets to 45c here in summer, havent ever seen them changing out led traffic lights since they were installed! dont see any not working very often or at all anymore either! have a small light with 3 leds in it on my helmet at work, great for working in panels when lighting is bad, which is in lots of places at the power station around the boilers etc. Also was good when working in mining industry at night, trucks etc can see you easier once you are away from service vehicle.
