surge protection: 140J/303J
Under and over voltage: 90V-140V
Delay Time: 30segs/3mins
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Under and Over Voltage
Features 1.Over/Under Voltage Protection: When the voltage exceeds the limit, it will automatically cut off the power to prevent the electrical appliances being damaged for too low or too high voltage. 2.Lightning Protection: Instantaneous voltage exceeds the limit, the product will protect the electrical appliance against excessive voltage damage automatically and quickly. 3.With indicator light:You can clearly see the working status of the protector.