This is a set including a custom-made LED lighting arm for the Ender-3 V3 SE, a Daiso LED light (330 yen) + batteries, and mounting screws. It makes it easier to check prints and work even in a dark environment. I've improved the one I made for myself and finished it in a ready-to-use state (installation confirmed on the main unit). **Installation Instructions:** 1. Remove the screw from the filament holder. 2. Attach the LED arm on top and secure it with the included screws. ※The LED light can be easily removed with magnets, but it didn't shift during 5-6 hours of use. However, it may fall off due to strong vibrations or lateral force, so we recommend securing it with cable ties if you are concerned. For those who are busy or want to use it immediately, we are selling it as a set with mounting screws and batteries. Please consider it. We have other products for sale, so please take a look. Feel free to ask about combined purchases or discounts in the comments. Thank you.