I purchased this in May of this year. The warranty period is one year, so it's valid until April 30th of next year. The photos don't show it much, but there's a slight stain visible to the naked eye. Please refrain from purchasing if you are concerned about this. I am selling this because I can't use it properly. It is battery-powered, not solar-powered. Since it hasn't been long since I purchased it, the battery should still have plenty of life. Retail price: 14,300 yen Instant purchase OK! Please comment if you have any other questions.