Not street lights, but I believe Feit Electric and Commercial electric made yardblasters that come with just a E26 socket and the LED cob lamp. The Feit Electric had a different style and the Commercial Electric one is based on the 65w CFL ones with the PC integrated to the ballast and facing the front of the head.
Yes, I have a Commercial Electric bucket light as you describe, with a medium based socket and LED bulb. It does look like the ones that had the CFL bulb.