Description The item is sensor desk lamp 3 way sensor , which have low, medium, high and off functions, suitable for 3-way touch lamp, you can use it to replace the old or damaged . The best repair for you. Features - Brand: Rosenice. - Material: Plastic and copper wire. - Size: 15.00X3.40X1.00cm/5.89X1.34X0.39in. - AC: 120V/240V; 50Hz/60Hz. - 3 levels: low, medium, high, then off. - Suitable for 3-way touch lamp (ordinary light bulbs 60W or less). - Red wire connecte to input (plug) live wire; Black wire as a common Null wire (connect input and output Null lines respectively); White wire connecte to the output live wire of the light source (ie bulb); Yellow wire must connect to the metal part of the lamp. - After installing the touch device, dimming or open lamp can not allowed on power cord. - No need to find where the is in darkness, touch the , you can easily on or off and adjust the brightness. - Fit for general light bulbs, not fit for LED bulb or energy saving lamps, pls make sure this point before purchase. Suitable for 3-way touch lamp (ordinary light bulbs 60W or less). Red wire connecte to input (plug) live wire; Black wire as a common Null wire (connect input and output Null lines respectively); White wire connecte to the output live wire of the light source (ie bulb); Yellow wire must connect to the metal part of the lamp. After installing the touch device, dimming or open lamp can not allowed on power cord. No need to find where the is in darkness, touch the , you can easily on or off and adjust the brightness. Fit for general light bulbs, not fit for LED bulb or energy saving lamps, pls make sure this point before purchase.