This product does not include an E12 bulb. This listing is only for the conversion socket, so please prepare the bulb yourself. E14 bulbs are often used in overseas products. They are quite expensive to buy in Japan. By using a socket that converts E12 to E14, replacement is possible at a lower cost. They are often used in overseas-manufactured home appliances, lighting, refrigerators, etc. According to those who have purchased this item, I often hear that they are used in Iris Ohyama appliances. 【Specifications】 E14 ⇒ E12 Base Conversion Adapter Male: E14 Female: E12 Socket Adapter Base diameter: 14mm Body diameter: 19mm Total length: 27mm Rating: 3A - 250V Please use under 20W Made overseas. Please understand that there may be rare cases where the threads differ from domestically manufactured E14 bulbs. Shipped via anonymous delivery Yu-Packet Post Mini.