It can be customized according to the strength of electrical, panel material, panel color, frame color, frame material, number of buttons, fonts, logo, backlight color and so on. Product Overview: multi-joint combination switch mainly to two or more switches together, easy installation, integrated look beautiful atmosphere, in line with the current layout of the hotel switch installed in the hotel. Features: Admission card function and touch switch combination, the number of keys can be customized, expandable up to four touch buttons technical parameters: Operating voltage weakness: DC12-24V Output Control: via RS485 can be identified in conjunction with the RCU cards: high frequency MF1, low-T5557 / T5567 and other static operating power: ≦ 3W life: 10W / h Bezel Material: zinc alloy frame color: gold / light bake panel color: black / white panel Material: glass Dimensions: 186 * 85mm