Bright! 960 Lumen L.E.D tail light bulb replacement.  
  If you are concerned about being seen. This is not an option.
 Motorcycle tail lamps and signals are more compact than 4 wheel drive vehicles, so bulbs are smaller and not available at auto spares stores.  
 Compatible with all motorcycle tail lights with dual filament bulbs and with all filament lamps supplied with Maund Speed kits.  Bulb requires no modifcations or resistors. Dual contact base for running and stop light.
  Bulbs are 35mm long. 12 volt. 3.36 Watts. Color : white. Base type BA15D