1.E27 Threaded Interface, General Standard E27 Threaded Interface, Commonly Used In Mainstream Lamps 2. Umbrella Hole Design, Can Install Soft Umbrella / Reflective Umbrella Umbrella Type Softbox Installation Portable 3. The Lamp Head Can Be Adjusted, Which Can Be Adjusted 360 At Will, Making Easier 4. Open Light Design, E27 Lamp Holder Adopts Switch Button, Allowing You To As You Like 5. Universal Base Interface, Can Install 99% Of The Photographic Light Stands, Tripods, Etc. On The Market Interface Inner Diameter: 45mm Interface Outer Diameter: About 20mm Scope Of Application: Suitable For All Standard E27 Threaded Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage: AC 220V Colour:black Material:nylon Size: 9.5 x 6.5cm Package Contents: 1 x Lamp Holder Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.