Pet Heater Asahi Incandescent Light Bulb Specifications: 100V・40W When purchased, it was used with a 40W bulb, but I later used it with a 100W bulb. I have confirmed with the manufacturer that there is no problem. Since I only had 100W bulbs on hand, I have replaced it with a new 100W bulb. Used for approximately half a year during the winter of 2024. I used it when raising quails. For this listing, after replacing the bulb with a new one, I have confirmed the power-on (photos 11 and 12) and that it heats up properly. There are no defects at the time of listing. It functions as intended. Home cleaned. You can use it immediately upon arrival. For any defects after delivery, please contact the shipping company or the manufacturer directly. To avoid unreasonable claims and troubles such as product swapping, and because it is a used electrical appliance, I have written this m(_ _)m Personally, I think it's in good condition for a used item, as it works without problems and the bulb is new. The exterior has some wear where the main body and the cord directly touch (photos 9 and 10). If you take measures such as wrapping tape on the contact points from the beginning, you can keep it clean and use it for a long time. In addition, since it is a used item, there may be minor scratches and dirt that cannot be captured in the photos. I have included many photos, so please take a close look before purchasing. In any case, there are absolutely no operational problems at this time. I am not considering lowering the price, so you can purchase it immediately. Dog Cat Rabbit Turtle Small Animals Pet Animal Heater Warm Winter