... ,and 1 AA battery inside, a button toadjust clock above the right corner of battery, a 220V ... -12Vtransformer at left of clock.This is 220V-12V transformer and 12V low ... lamp is use of this form of bulb.Features:1. clock. 2, wall lamp. 3, decorative. Product accessories: host ... voltage, when turn on the device, a colordisc circular about 80cm in diameter will be projected on thewall, ...