Key benefits and why you need it Reliable touch control: single key bistable switch with selflocking or inching mode, reducing wear and eliminating traditional mechanical switch fatigue. Direct load driving: supports DC 330V and up to 2.5A, capable of directly powering various lowpower devices such as LED lamps and related appliances without an external driver. Precise touch sensing: sensing distance up to 8 mm for convenient and dependable operation on acrylic panels, casings, and veneers. Flexible startup behavior: output state after poweron can be selected via a resistor at terminal A, enabling predictable startup in different circuits. Simple integration: designed for easy use in touch switch control applications on lightweight enclosures and displays. Core specifications Working voltage: DC 330V Maximum output current: 2.5A Load compatibility: lowpower electrical appliances, lamp belts, LED lamps, and other electrical appliances Switch type: touch type single key bistable Modes: selflocking or inching Sensing distance: up to 8 mm Applications: touch switch control for acrylic panel casings and veneers Poweron output behavior: selectable via resistor at terminal A With a resistor at point A, the output is closed at poweron Without a resistor at point A, the voltage is output at poweron How it works The device uses a touch sensor to operate a singlekey bistable switch. In selflocking mode the output toggles on each touch and remains on until the next touch; in inching mode the output briefly activates with each touch. It can directly drive loads up to 2.5A at a 330V supply, making it suitable for small lighting and control circuits. The sensing distance of up to 8 mm provides reliable operation on flat acrylic panels, casings, and veneers. At powerup, the output state can be configured by wiring a resistor at terminal A: Resistor present at A: output closes on powerup No resistor at A: voltage is output on powerup Use scenarios Scenario 1: Touchactivated LED lighting in an acrylic display cabinet. Supply 12V DC, up to 2.5A. Use selflocking mode for toggling lights on/off with each touch, or inching mode for momentary light activation. Scenario 2: Touch switch for a small LED strip in a product showcase. Install on an acrylic or veneer panel with up to 8 mm sensing distance to ensure reliable activation without pressing a physical switch. Scenario 3: Poweron startup control for a compact appliance or device in a cabinet or case. Use the resistoratA option to ensure the device powers on in a defined state when the system is energized. Notes Ensure the supply voltage remains within 330V DC and the load does not exceed 2.5A to prevent damage. The unit is intended for lowpower applications and direct drive of compatible loads without additional relays or drivers. The design supports use on acrylicpanel enclosures and veneer surfaces where a touchenabled control is desirable.