Blackburn System X Lights are the next generation in high powered bicycle lighting and will come in very handy to prevent blair witch type moments. Blackburn System X Lights insure lots of light, lots of runtime and unsurpassed reliability. X Lights are powered by Luxeon emitters that put out 85 lumens each, for a combined light output equivalent to a 25w halogen. X6 Kit comes with a wide angle lamp head, spot beam lamp head, lightweight NiMh battery, dimmer switch, and a helmet mount for a price of $249.99. Blackburn Design.