First come, first served - no need to inquire before purchase! ● Allows you to insert a general (E27) light bulb into an E26 socket. Light bulb [E27 male] - This product - Power source (wall/ceiling) [E27 female] ● Can be used with old-fashioned incandescent bulbs, fluorescent light bulbs, and LED light bulbs. ● As an extension plug to minimize the effect of a lampshade when inserting an LED light bulb with a motion sensor into a place with a lampshade. ★ Condition and Notes ● The product is new and unused. ● Will be shipped after operational check. ● There are burrs. ● There have been cases where customers purchased the wrong size, intentionally damaged the product, and requested a return. This product is considered junk and cannot be returned.