【Product Description】 This is a dimmer switch "Mood Switch B" (WN575159) manufactured by Panasonic (formerly Matsushita Electric Works). Please note that production of this product is scheduled to end in April 2026. Negotiations for price reduction are welcome. This item was removed when I converted the lighting in my home to LED. It is a used item, but all functions have been confirmed to be working. I am selling items that were mostly unused. Please check the photos for any dirt or scratches. However, please be aware that some time has passed since manufacture. Model Number: WN575159 Dimming Capacity: 40W~500W ※The upper limit is 300W depending on the conditions. For details, please copy the model number and search on Google. This is exclusively for incandescent light bulbs and cannot be used for dimming LED light bulbs in principle. However, at least in my house, I have been able to correctly dim dimmable LED light bulbs using this, so there is a possibility that it can be used. ※Flickering may occur. ※I cannot guarantee that this product can dim LED light bulbs under any conditions. ※A Class 2 Electrical Engineer license or a higher-level equivalent is required to install this product. 【Regarding Switch Changes】 Currently, a 3-way switch (WN5002) is attached, but it can be changed as long as stock is available. This change is free of charge, so I can accommodate it if you contact me after purchase, before shipping. Change options: ・WN5001 (Single-pole) ・WN5051 (Single-pole with pilot light B) ・WN5052 (3-way with pilot light C) Also, if you wish to have the jumper wires installed before shipping, please contact me after purchase. 【Regarding Quantity Changes】 If you wish to purchase less than 4 pieces, please comment before purchasing. However, the shipping cost will be added, approximately 300 yen, after calculating the price per piece. Also, if you wish to purchase more than 4 pieces, please comment before purchasing. However, please understand that I may not be able to accommodate your request if I run out of stock. In this case, I will discount the shipping cost accordingly. (Up to 8 pieces can be sent in one box) 【About Shipping】 Shipping will be via Yu-Packet Plus. I will pack the items to prevent shipping accidents. There are no smokers or pets in my household.