Thank you for viewing! This is a 30cm indoor motion sensor light. While many are 20cm, this one is 30cm. It's perfect for stairs, hallways, closets, and more. To keep the price down, we will ship it in simple packaging for postal delivery, removing it from its original box. ⭐️ No Batteries Required ⭐️ It's rechargeable, so no batteries are needed. A short cable is included. ⭐️ Mode Switching ⭐️ There are three modes: constant on, sensor light, and OFF. ⭐️ Installation ⭐️ Attach the included magnet and iron plate to the wall with tape. 【For those worried about misalignment】 Attach the magnet to the main unit. Attach the iron plate to the magnet, peel off the tape backing on the iron plate, and press it against the wall. This will allow you to install the magnet and iron plate without misalignment. Set Contents [Per Quantity] 30cm LED light, magnet and iron plate, USB cable We inspect the product before shipping, but in case of damage during transit, please apply for compensation from the Yahoo! Flea Market administration. We will address initial defects that the administration cannot handle, so please contact us. Due to price competition, we have modified the original box to reduce shipping costs. Thank you for your understanding. We will ship in simple packaging. Although they are all 30cm, there may be a mix of different factory products. Thank you for your understanding. We have many other items for sale, so please take a look!