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The world is suffering from energy shortage. It will make a better world if we could reduce the consumption of energy from every little thing of our lives. However, in daily lives we are inclined to overlook this, we usually turn on electrical appliance to its maximum power. Especially the one with rotary switch, It always on its maximum power when turning on. As a matter of fact, there is no need to engage maximum power.
The design of Energy-saving switch helps you preserve the energy before you realize it. There is some degree of slope between the rotary button and the back cover of the switch. The two dimensions stay in parallel when close