Japan is the world's largest LED producer by value, and the LED market has continued to grow each year due to the movement to conserve energy resources.
On July 1, 2011, the Japanese Ministry of Economy, Trade and Industry (METI) published the "Partial Revision of the Cabinet Order by the amendment to the government ordinance for the Electrical Appliances and Materials Safety Law." The new amendment requires a round "PSE Mark" to be affixed to "LED lamps" and "LED electric light instruments" intended for sale in the Japanese market from July 1, 2012. "LED lamps" and "LED electric light instruments" have thus become regulated products under the Electrical Appliance and Material Safety Law ("DENAN Law"). Only LED lamps and light instruments with a voltage between 100V~300V and a power rating greater than 1W that use 50Hz and 60Hz AC circuitry will be regulated.
METI Ministerial Ordinance No. 1 is currently the only safety and electromagnetic compatibility standard for LED product certification in Japan. The harmonized standards for METI Ministerial Ordinance No. 2 (JIEC) have not yet been published. For this reason, the IEC standard for LEDs is not accepted under the DENAN Law. All LED light bulbs and LED electric light instruments imported into Japan after July 1, 2012, must therefore conform to the Technical Requirements of METI Ministerial Ordinance No. 1.
