Purchased November 2018. Operation confirmed. Uses 4 single batteries, but batteries are not included. The Amazon site describes three colors: white, daylight white, and warm white, but I perceive only two colors. Since it has been used very little, I don't think there are many scratches or stains other than those from aging. Please judge from the photos. Instruction manual: https://www.gentos.jp/wp-content/uploads/EX-1000C_manual.pdf I owned this without fully understanding the switch operation, but the above site is the instruction manual. The switch operation is a bit complex, but it is not a malfunction. I own two of these, and I am selling one of them this time. Regarding the switch, both units have the same response from new, so I recognize it as normal operation.