... reasonalbe price ,excellent quality; 2.energy-saving ,environment-friendly; 3.quick delivery , easy operation; Sound sensor lamp holderDescription: Modelwiring method Application ... the ordinary switch using 2 wires. It is easy to operate.4, Some energy-saving lamp which has special ... working voltage:175VAC~250VAC 50Hz2,power :incandescent lamp≤100W,energy saving lamp≤40W,3 way3,delay time:60S±20S4, ...