DC3.7V–24V PWM LED dimming module with stepless potentiometer — a compact constantvoltage control board for LED strips and table lamps. Provides smooth, accurate brightness adjustment across a wide DC input range and integrates easily into DIY and retrofit lighting projects. Key benefits Wide input range (DC 3.7V–24V): works with common battery and DC power supplies (singlecell Liion setups up to typical 24V systems). Stepless knob potentiometer: continuous, flicker brightness control without preset steps. PWM constantvoltage drive: stable output for constantvoltage LED strips and DC lamps, maintaining color consistency while dimming. Compact square circuit board: small footprint for simple installation into enclosures, lamp bases, or panel mounts. Simple, direct control solution: replaces bulky controllers or adds an intuitive local dimmer to existing LED lighting. Key features and specifications Input voltage: DC 3.7V to 24V Dimming method: PWM (Pulse Width Modulation) Control: Stepless potentiometer knob (smooth turn for precise adjustment) Output type: Constantvoltage output for LED strips and DC lamps Form factor: Square circuit control board with mounted potentiometer Typical applications: Singlecolor LED strips, DC table lamps, cabinet/undercabinet lighting, hobby electronics How this module solves common problems Eliminates coarse on/off control: provides smooth, continuous dimming so you can set exact brightness for comfort and ambiance. Works with many power sources: the broad DC input range reduces the need to match a specific driver or to multiple controllers for different voltages. Keeps LED color and performance stable: PWM dimming maintains LED color fidelity and efficiency compared with crude voltagedropping methods. Simple retrofit: adds userfriendly knob control to lamps and strips without redesigning the fixture. Compatibility and usage notes Intended for constantvoltage LED strips and DC LED lamps operating within the 3.7V–24V range. Not designed for LED modules that require constantcurrent drivers or for individually addressable RGB/RGBW pixel strips. Connect between your DC power supply and the LED load; observe correct polarity and supply voltage before powering. Ideal for installations where a local, tactile dimming control is needed. Use cases Undercabinet or accent LED strip lighting (12V): add smooth, stepless brightness control to kitchen or display lighting for better task lighting and ambiance. Table lamp retrofit (battery or DC supply): convert a DCpowered table lamp to variable brightness using the onboard potentiometer for easy bedside or desk adjustment. DIY and prototype lighting projects: integrate into hobby electronics or custom fixtures that require a compact constantvoltage dimmer compatible with 5V to 24V systems. Installation tips Verify your LED load matches constantvoltage operation and stays within the input voltage range. Turn the knob fully counterclockwise before powering up for a controlled start. Secure the board in an appropriate enclosure to prevent accidental shorts and to provide a finished appearance for panel or lamp mounting. This PWM dimming module is a straightforward, reliable choice when you need compact, stepless brightness control for constantvoltage LED strips and DC lamps across a broad voltage range.