Running lamp. The likeness of a "cartoon robot" was intentional.
Turn indicator The Amazon lamp is on axis with the camera. The stock indicator is not, yet the higher brightness of the stock indicator is very obvious.
Luxmeter (iphone) readings:
Stock lamp assembly:
Running lamp: 400 lux
Turn indicator lamp: 2400 lux
Brake lamp: 2800 lux
Amazon aftermarket $18 lamp assembly:
Running lamp: 320 lux
Turn indicator lamp: 280 lux
Brake: 610 lux
Amazon aftermarket 20 watt fog lamps, modified to make them only 10 watt, and mounted on my crash-bar: 9500 lux each. BooYa!
Lux is not typically meaningful when speaking of mono-chromatic light sources, but this should be good enough to compare the relative light output of the stock lamps compared to the aftermarket lamps. Any photographers please feel free to chime in.
I am not impressed. I might put this light on my bicycle, because it is glued together, and I cannot open it to make some improvements. I will keep looking for some cool looking round tail lights.