... the mine of low illumination. The camera adopts optical transceiver, CCD components, tight shot, electric zoom lens ... parameterMonochrome , 1/3CCD , lowest degree of illuminationOptical transceiver parameterSingle mode / multimode, ST interface, single-channel video ... requirementPower supply: 2×1.0 mm2 mine ignition-proof cable signal: 2-core mine ignition-proof optical cable