Originally Posted by
davidad
I am with 10W! I have been able to see the light at 1/2 mile in the daylight on the highway.
Where did you get a 140R that has a 10W driver?
AFAIK the 140R uses a 3 watt driver.
It's a single driver, yes?
AFAIK the largest single drivers you can even buy are 5 watts.