Q5's are 5W at full pop. Note that not all LEDS have the same efficiency and the higher the output the more Heatsinking you need. Look at those bulbs Hansos getting.
CREE's LEDS are well documented on their web.
5050 SMDs tend to draw about 0.5W and pump out 20 lumens.
If you go by the camera the stock bulb wins hands down. In person, the led puts out a more intense, harsh light, would probably grab the attention of drivers better. It's cloudy today. The next sunny day I'll try some outside picks.
Never tried that one but I am using the Kisan Tailblazer and it works really well. I have noticed most tail pushers seem to give me an extra five foot!
I guess I'll have to get out my multimeter, and answer my own question. These LED's claim to draw less power right? So how come when you put them in a turn signal application, car or bike, the stock flasher will flash much faster than with a stock filament type bulb. Stock, mechanical type flashers work on load. The more the load, the quicker they flash, (open). And look at all the heat these LED's put out. Heat takes electricity. Just sayin, that's all.