Used for about a year. Selling due to moving. It can be turned ON/OFF without any problems. The following is a product description. ● Turns lighting fixtures ON/OFF from a distance using an infrared remote control ● Use by setting the receiver between the lighting fixture and the ceiling's hanging socket ● Features a fixed lock function to prevent falling ● With power indicator lamp ● For pendant type lighting only 【 Specifications 】Receiver Body ■ Input: AC100V 50Hz/60Hz ■ Rated capacity: 3A ■ External dimensions: Diameter (approx.) 100 x Height 40mm ■ Weight: approx. 115g Remote Control Transmitter ■ Battery used: Coin-type lithium battery CR-2025 3V 1 piece (battery for operation check included) ■ External dimensions: (approx.) Width 45 x Height 72 x Depth 7mm ■ Effective distance: approx. 5m (when there are no obstacles) ■ Weight: approx. 18g