1.material:bakelite shell,E27 lamp holder 2. power:4A, 250V; 3. Lamp coil: Iron; 4. Contactor: brass 1.material:bakelite shell,E27 lamp holder2. power:4A, 250V; 3. Lamp coil: Iron; 4. Contactor: brass5.packing : 12pc/colour box, 240pcs/carton carton size: 52*26.5*48cm6.Long working time,Lifetime:about 10 years.7.Usage: lighting and lamp fields8.High quality,Elegant design,good price