I purchased and got
THESE ONES Delivered today. Installed and I am very happy. They are very bright. The license plate bulb housing does not seem to have any reflector build in. So i think any LED Bulb that has lights all around will be a waste (like the ones I got) however they are indeed bright.
Images attached, but we all know how hard it is to get an accurate representation of light (brightness) output on camera.
P.S. It takes a T10 / 194 Bulb size
First two images show the LED on the left and the Halogen bulb on the right.
That last image shows all LED (Take a notice on the light reflected on the driveway by the license plate LED bulbs)