Doorbell switch 1)Easy installation 2)ISO,CE,3C 3)Timely Delivery Doorbell switch1)Material : PC or ABS fire proof or bakelite,COPPER2)Current :16 A3)Voltage : 250V4) Available in different color5)Safety,reliable and durable6)Easy installation7)Packing:1PC/poly bag,10pcs/inner box,100pcs/carton8)Could produce different series as follow :