Methods of electricity supply: USB connection or USB cable+plug or 3* AA Batteries (not included ). Decorative lights with high-quality LED, the love optical Illusion lamp is soft and uniform, no dazzling, harmless to eyes. Touch the power button on the base to change colors or turn on/off the light. Can be fixed or 7 colors gradually changing one color Red /Green /Blue /Yellow / Cyan /Purple /White.
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