Features: 1Both front and back can be used as touch surfaces, which can replace traditional touch buttons 24pcs M2 screw positioning holes for easy installation 3Light touch contact type touch sensor, and then touch sensor for a long time, the table lamp can be bright and long 4Green LED power indicator, light up when power is on 5Adopted of high quality electronic components, and accuracy process, ensure for the durability Condition: 100% Brand new Item Type: Touch Sensor Module Power Supply: 2~5.5V DC Screw Positioning Hole: 4 x M2, 2.2mm Control Interface: A total of 3 pins (GND, VCC, SIG) GND is ground, VCC is the power supply, and SIG is the digital signal output pin. Power Indicator: Green LED, it will light up when it is powered on correctly Touch Area: The inner area of the icon similar to the fingerprint, which can be triggered by a finger touch. Minimum valueTypical valueMaximum valueUnit Unit supply voltage235.5V Output high level 0.8 V Output low level 0.3V Output pin sink current 8 mA Output pin pull current -4 mA Response time (low power mode) 220mS Response time (fast mode) 60mS Size24 x 24 x 7.2mm / 0.9 x 0.9 x 0.3inmm/in Weight2g / 0.07ozg/oz Package included:10 x&nbspTouch Sensor Module