Wide Angle Lens for MagicShine, Gemini, and many other Bike Lights / Headlight. Includes O-Ring

With the stock lens and reflector these lights produce about a 10 degree beam angle. This allows the light to penetrate far down the road. But for some uses the beam on these lights is too tight. Our Wide Angle Lens changes the standard 10 degree beam into a 10 degree by 30 degree beam. It spreads the light only horizontally, not up in the trees were you don't need it. This keeps the brightness up and lights the full width of the road or trail in front of you. It installs by simply unscrewing the bezel that holds the current lens and replacing it with the new wide angle lens. It's easy to switch back and forth if needed. The lens was designed for the Magicshine MJ-808 (all versions) which comes with an approximately 1mm thick tempered glass lens. Many other copies of this light come with a thicker plain glass lens. To take up the extra thickness for these lights and insure a snug, waterproof fit, an O-ring is included with your lens to place behind the lens. Want a total flood (horizontal and vertical) Install 2 lenses back to back with the ribs at 90 degrees to each other. It produces a 30 degree by 30 degree square beam. Manufactured by Action LED Lights in the USA