Those look good Peter thanks. These are the first I've seen where the LEDs are in the same postion as the filaments on a tungsten bulb. This is important for the tripod headlights because there's a cowl over the top of the bulb which looks as if it's there to provide the cut-off for the dip beam. Guess I'll try a pair.
I have one on my motorbike and found that it cuts out a lot of light from many of the bulbs I bought off e-bay with front facing diodes (the others couldn't cope with the vibration!).