... Custom design membrane key 2.Second surface printing 3.UV resistance. 4.Waterproof Beyond 15 years production experience ... as Shielding, Windows/Lens Coating, Embossing, Embedded LEDs, UV glossy/matte/textured, EL,LED backlingt,rubber keypad etc. ... ) <100mA 1WLife Expectancyflat type ≥ 500 million times, tactile type: ≥ 100 million timesContact Resistance10Ω--500Ω (According the trace length and ...