{"product_id":"riorand-7-70v-pwm-dc-motor-speed-controller-30a-low-heat-aluminum-housing-for-brushed-dc-motors-diy-projects-small-electric","title":"RioRand 7-70V PWM DC Motor Speed Controller 30A - Low Heat Aluminum Housing for Brushed DC Motors, DIY Projects \u0026 Small Electric","description":"\u003cp\u003eBrand: RioRand Product Name :DC Brush Motor Speed Controller Whether youre building DIY robotics, upgrading small electric tools, or needing precise speed control for fans or mini pumps, this 7-70V 30A PWM DC Motor Speed Controller delivers reliable performance. Designed exclusively for brushed DC motors (not compatible with brushless motors or AC power), it features optimized circuits, high-voltage MOSFET, and 3x 100V capacitors to ensure low heat generation and long-term stability - no annoying vibration or noise, just smooth speed adjustments from 1% to 100% duty cycle. A common question: Why does the output voltage match the input when unloaded? This is normal - to measure accurately, connect a loaded motor to the output terminal. Remember to reserve a 5-10V voltage margin (never exceed 70V) and match your motors power to the controllers voltage-specific limits to avoid overload. Weve included an extra fuse for backup, so you can quickly replace it if needed. Installation is straightforward for users with basic wiring knowledge: match the input power polarity (reverse connection causes damage), attach the motor (no polarity required - swap wires to reverse direction), and use the detachable 15cm potentiometer to adjust speed. This controller isnt a voltage reducer - its a dedicated speed regulator for brushed DC motors, engineered to handle the demands of DIY projects, small electric devices, and hobby equipment. With its durable aluminum housing, low heat design, and proven performance as a trusted model, it stands out from budget alternatives. Choose single units (red\/green) or 2PCS packages for better value - a reliable solution for anyone needing precise, stable speed control.\u003c\/p\u003e","brand":"RioRand","offers":[{"title":"Default Title","offer_id":45059656155251,"sku":"WBIASB00MFJK7WK","price":33.01,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/1958\/6419\/files\/71zwHJbvDTL.jpg?v=1780321835","url":"https:\/\/slickpurchase.com\/products\/riorand-7-70v-pwm-dc-motor-speed-controller-30a-low-heat-aluminum-housing-for-brushed-dc-motors-diy-projects-small-electric","provider":"Slickpurchase","version":"1.0","type":"link"}