Professional Custom Lamp Holder Accessories Manufacturer

Early UL standard E26 specifications called "Medium" (medium lampholders meaning). E26 and E27 are classified as IEC standard specifications. The lighting system of each country differ because of the different mains voltage E26 multi mains voltage 100V ~ 120V countries E27 multi-220V ~ 240V countries. Seen on the market E26 lamp fixed voltage is more than 100V ~ 120V; E27 and more with safety bulb 36V, 220V ~ 240V, and industrial machinery. E26 and E27 of both threaded outer diameter is relatively close, the difference is the different peak-to-valley depth of the thread E, E26 is relatively shallow. In addition, the the E27 lamp neck than E26 longer, so the two lamp should match the respective specifications of the lamp holder. E27 lamp screwed to E26 lamp holders, you will find the neck metal experience exposed a lot of (likely to cause an electric shock). E27 in China, are also common in Europe. E26 in North America, is more common in Japan.