Up to now we have used dusk to dawn CFL bulbs in our outside light fixtures. They provide security and safety without the need to manually switch lights on and off at dusk and dawn. The problem is that we are not fans of CFL bulbs. CFLs contain potentially dangerous chemicals including mercury so they need careful handling and even more careful disposal.
LED bulbs are preferred in our home, so this 60W Equivalent cool White Dusk to Dawn A19 LED Light Bulb (2 Pack) grabbed our interest. However, the bulbs faced immediate challenges. Our outside fixtures were not made for automatic dusk to dawn light bulbs. For one thing, they are painted black on the inside and outside. This limits reflected light inside of the fixture making it more difficult for them to turn off. The other challenge is that the fixture itself shades the bulb's light sensor causing some dusk to dawn lights to stay on continually.
This 60W Equivalent cool White Dusk to Dawn A19 LED Light Bulb had no issues either with the black paint or the fixture. It reliably turns off in the daylight and turns on at night. There is yet another advantage--they are considerably brighter than the CFLs thus providing superior illumination.