The advanced design of this speed controller makes it an indispensable component for automotive and industrial applications. Its robust construction and user-friendly interface allow for adjustments, ensuring optimal performance. Ideal for engine cooling, climate control, and heating systems, it meets the demands of modern vehicles. Features -Color:Multi -Material:Plastic -Size:6.40X5.90X2.80cm/2.52X2.32X1.10in - : designed to withstand prolonged use, providing dependable performance for your electric vehicle -Safety improvement: enhances the safety and efficiency of your electric vehicle, ensuring a smoother operation -Easy to install: userfriendly installation process, fitting a wide range of electric vehicle models -Multifunctional design: offers various functions such as speed and dimming control, meeting diverse needs -High : capable of handling high power devices, ideal for electric vehicle heating systems and accessories Package list: 4 pcs x 1 electric vehicle speed regulator