5Pcs DC 4 Key Matrix Membrane Switch Control Keypad Keyboard With LED Specification: Mount style: self-adherence Pad size: 69 x 20mm Cable length: 4.2inch\/106mm (include connector) Connector: DuPont 5 pins Mount style: self-adherence Circuit rating(max): 3.5V(DC) 100mA，1W Contact resistance: 10!#!amp!*!Omega; - 500!#!amp!*!Omega; Insulation resistance.: 100M!#!amp!*!Omega; 100V Electric shock jitter: !#!amp!*!lt;5ms Dielectric strength: 250VRms (50 - 60Hz 1min) Life expectancy: 1 million times Operation temperature: -20 C to +40 C Storage temperature: -40 C to +80 C Storage humidity: 70% - 90% Package included: 5 x 4 key matrix membrane switch keyboard