This is the IKEA smart lighting "TRÅDFRI" starter kit. It's a set of a light bulb (E26 / warm white) and a wireless dimmer, allowing you to turn the light on/off and adjust the brightness from your hand. The hub (DIRIGERA) is sold separately. Specifications: ・Article number: 505.415.57 ・Base: E26 ・Light color: Warm white (2700K) ・Brightness: 810 lm ・Power consumption: 6W (0.2W in standby) ・LED life: Approximately 25,000 hours ・Protection class: IP44 Set contents: ・Smart light bulb ×1 ・Wireless dimmer ×1 Condition: This is a used item, so there may be some scratches due to use. Usage time is unknown, but it's been used for about 1 hour a day for about a year.