Thank you for viewing. This is a 30cm indoor motion sensor light. It's 30cm, while many others are 20cm. It's very useful for stairs, hallways, closets, etc. To keep the price down, we will ship it in simple packaging for mail delivery after removing it from its original box. ⭐️No batteries needed⭐️ It is rechargeable, so no batteries are required. A short cable is included. ⭐️Mode switching⭐️ There are modes for always-on, sensor light, and OFF. ⭐️Installation method⭐️ Attach it to walls etc. with the included magnet and iron plate using 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 from the iron plate, and press it onto the wall. This will allow you to install it without the magnet and iron plate shifting. Set contents [per unit] 30cm LED light, magnet and iron plate, USB cable We inspect items before shipping. In case of damage during transit, please apply for compensation from Mercari's customer support. If there is an initial defect that Mercari's customer support cannot handle, we will address it, so please contact us. Due to price competition, we have modified the original box to reduce shipping costs. We appreciate your understanding. It will be shipped in simple packaging. Although they are all 30cm, there may be variations from different factories. We appreciate your understanding. I have many other items for sale, so please take a look.