This is a smart rgb gu10led bulb with 19-26 ft Long Distance Remote Controller pack of 4 pieces that are able to controlled by one wireless controller at the same time. So you don't need to worry about if your bulbs are compatible with your previous controller or waste extra money for buying 4 controllers for 4 bulbs.
This pack of rgb led bulb contains 4 pieces of color changing light bulb with Gu10 socket so they are 110 - 120v direct use. They are Gu10 RGB Color changing lights and color changing bulb. Controlling distance is about 4 - 5 meters.
There are 16 single colors with a lot of different built-in effects to play with - like color changing, color running, flashing etc
Remote Controller Manual:
Up: Brightness up/Long press for fast flashing. Down: Brightness down/Long press for slow flashing.
On: Power on.
Off: Power off.
R: Color change to Red.
G: Color change to Green.
B: Color change to Blue.
W: Color change to White.
FLASH: Auto-change color, fast skip.
STROBE: Auto-change color, slow skip.
FADE: Auto-change color, fast shade.
SMOOTH: Auto-change color, slow shade.
Other no-letter buttons: For color-mixed.