Product Specification: Button control, simple operation, current: 2.5A, connector: 5.5 * 2.1mm / 0.2 * 0.1in, weight: approx.46g / 1.6oz. Excellent Performance: This DC 5V ~ 15V temperature controller has 5-speed reduction cycle and timing function, which can be used to control the temperature for a long period of time. Scope of Application: This temperature control switch has high practicality, which is suitable for 5V heater,12V heater, 7.4v heater. Premium Quality: This temperature control switch adopts excellent manufacturing process with quality and stable performance, which can provide you with a superior using effect. Guarantee: Our product have 180 days warranty, if you have any question about this product, please feel to contact us, we will try our best to help you solve your problem.