Features 1、[All Weather Performance] The 45A RC brushless ESC is water and dust proof, ideal for all h racing events. Please remove the cooling fan before using in water and clean and dry it promptly after use to avoid connector rusting. 2、[External Programming Port] Featuring external programming port, easy to connect to programming card when setting ESC. 3、[Multiple Protections] Features multiple safeguards including low voltage cutoff, overheat protecting, throttle signal loss protecting, and motor lock protecting for enhanced safety. 4、[High Performance] Provides proportional braking with 4 levels of maximum braking force adjustment, 8 levels of drag brake force adjustment, and 9 step acceleration adjustment to cater to various vehicle types, tires, and tracks. 5、[Versatile Compatibility] Suitable for 1/10 short course trucks, four wheeled vehicles, and trucks. Built in switch mode BEC, making this RC brushless ESC compatible with various servo systems. Specification Item Type: Brushless ESC Speed Controller for 1/10 RC Material: Aluminum alloy Model: WSDT 45A Continuous Current: Fwd. 45A/version 45A Peak Current: Fwd. 135A/version 135A Resistor: 0.0012Ω Compatible Vehicle Type: 1:10 on road, off road, truck Battery: 4-9 NiMH cells, 2-3S Li Ion cells Motor Limitations: For 2S LiPo or 6 cell NiMH: On the highway: Engines of size 3650 or smaller KV<6000 Off Road, Truck: Size 3656 or KV<4000 small motors For 3S Lipo or 9 cell NiMH: On the highway: Engines of size 3656 or smaller KV<4000 Off Road, Truck: Size 3656 or KV<3000 small motors BEC Output: 5.85V 3A Cooling Fan: Directly from the battery, no need for adjustment Inventory fan can be used in conjunction with 2S and 3S Lipo Package List 1 x ESC 2 x Adhesive Sticker 2 x Cable Tie 1 x User Manual