1.E27 Threaded Interface, General Standard E27 Threaded Interface, Commonly Used In International 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 Shooting Easier 4. Open Light Design, E27 Lamp Holder Adopts Independent Switch Button, Allowing You To Shoot 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 United States, the Philippines and so on. Voltage: AC 220V Colour:black Material:nylon Size: 9.5 x 6.5cm Package Contents: 2 x Lamp Holder Only the above package content, other products 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.