Size:Black / with button switch [name] E27 screw steering clamp holder [Color] black, white [material]  high quality steel paint [Size] clip can clamp the maximum opening 4cm, lamp tube length 115mm, cylinder diameter 50mm,  the lamp can be stretch out and draw back between 0-30mm [Use]  can be applied to the lamp, showcase, clothing store lighting lamp, aquarium tank insulation and lighting.Please leave a mesage for color and Type. Thank you !226827400.Item specifics:Item type: Lamp BasesCertification: CCCWarranty: 1Model number: zhuanxiang-jiazi-dengzuoBase material: Iron,PLASTIC