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Glass Bifocal lens and Single lens
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Bifocal lens
Single lens : There is only one light ------ low beam, generally halogen bulb or xenon bulb is used. The single-lens lens is designed with corresponding low-beam and high-beam lenses. The difference between the double-beam lens is that it can perform a transformation similar to the conversion of far and near beams, which is usually in the low beam state.
Bifocal lens: It is a lens that can switch between far and near light through the shading film inside the lens! When the visor is closed, it is the low beam, and when the visor is open, it is the high beam! But the light bulb inside the lens does not move, and there is no change!
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