Abstract: A thermal effect switch in accordance with a preferred embodiment includes a thermal chamber and an effect switch mounted on the thermal chamber. The thermal chamber has a sealed chamber and working fluid filled therein. The sealed chamber has a vacuum chamber. The effect switch is a flexible structure configured for turning inwards and outwards, and is operated by changing inner pressure of the thermal chamber produced by heating the thermal chamber. The thermal effect switch can drive the effect switch according to the heat condition of the thermal chamber.