First, pull out the plastic piece before use. Adjust brightness, turn lights on or off, 16 multicoloured options, 4 light patterns: Static/ Flash/ Strobe/ Fade-change/ RGB Smooth-change. MR16 GU10 E27 E14 LED Bulbs 5W 8W 10W Ultra Bright 2835 SMD COB Spot Light 220V.
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