Easy & Quick Installation – Simple setup without wall obstruction; connects effortlessly to any load. Switch size: 7.5 5.2 2.6cm. After power is applied, group A/1 lights up. A/1 turns on/off the blue group, B/2 turns on/off the white group, C/3 turns on/off the yellow group, and D/4 turns on/off the green group.
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