-
The unique design of the double paraboloid reflector, so that the lamp light efficiency increase;
独特的双抛物面设计反光罩，使灯具光效大幅提高；
youdao
-
The unique design of the double paraboloid reflector, so that the lamp light efficiency increase;
独特的双抛物面设计反光罩，使灯具光效大幅提高；
youdao