Timer switch for stair lights, 220240V AC, mechanical automatic light switch with adjustable delay 0.5 to 20 minutes, energy efficient ABS housing Key benefits Automatic timeout control: turns lights off after a preset interval to prevent lights being left on by mistake. Energy saving and cost control: reduces unnecessary runtime for commonarea and stair lighting. Simple, reliable operation: mechanical timing mechanism with a clear adjustable range from 0.5 to 20 minutes. Durable construction: impactresistant ABS housing built for everyday use in residential and light commercial settings. Easy to integrate: designed for 220240V AC lighting circuits and typical stair or corridor installations. What this product does This mechanical timer switch provides automatic lighting control by switching lights off after the selected delay period. The adjustable timing range from 0.5 to 20 minutes gives flexible control for short or longer illumination needs without extra electronics or programming. The unit is compact and suitable for installation within standard wiring enclosures. Important attributes Function: Mechanical automatic timer switch for turning lighting off after a set delay. Voltage compatibility: 220240V AC suitable for standard mains lighting circuits. Delay range: Adjustable 0.5 to 20 minutes. Material: ABS housing for durability and impact resistance. Performance: Stable mechanical timing, designed for repeated daily operation. Practical applications Apartment or communal stairwells: Ensure lights stay on long enough for safe passage then switch off automatically to avoid wasted energy. Home corridors and landings: Provide hands lighting control when moving between floors or rooms, without requiring manual switchoff. Basements, garages, and storage areas: Keep lights on for the required task time and prevent lights from being accidentally left on. Installation and use notes Intended for integration into 220240V AC lighting circuits. Follow local wiring codes and install in accordance with standard electrical practice. Recommended installation by a qualified electrician. Compact ABS design fits typical mounting arrangements and protects internal components from everyday wear. Why choose this timer switch This mechanical timer delivers dependable, straightforward lighting control for stairways and other frequently used areas. Its adjustable 0.5 to 20 minute delay, energy efficient operation, and robust ABS housing make it a practical choice for reducing wasted electricity while keeping shared and transitional spaces safely lit when needed.