For further light vertical light beam, not be skewed upwards too 0%; not be skewed under more than 2% for lamps with mounting height not greater than 850 mm above the ground or not be skewed under too 2.75% for lamps with a larger installation height 850 mm above the ground. Horizontal beam of light, the lamp is not skewed to 2%, not too skewed to the left too 0%;
đang được dịch, vui lòng đợi..
