三重氢照明被用在完全黑暗状态，而视觉纤维（自动调节）用在白天或者可以说在有外界光线的情况下。
The Tritium illuminates the aiming point in total darkness, and the fiber-optic self-adjusts reticle brightness during daylight according to ambient light conditions.
三重氢照明被用在完全黑暗状态，而视觉纤维（自动调节）用在白天或者可以说在有外界光线的情况下。
The Tritium illuminates the aiming point in total darkness, and the fiber-optic self-adjusts reticle brightness during daylight according to ambient light conditions.
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