Yes, these lights works very well in the water. Boldly use the light in an aquarium, vase, pool, bath, or any water filled containers you want that involves make water light up, or you just using it as an accent light. Buy it and have fun with it.
Party/Event Illumination: flower arrangement, table settings, ice sculptures, crystal vases, etc.
Holiday Accent Lighting: swimming pool, pond, ice bucket, fountain, waterfall, etc.
Home Accent Lighting: indicator light, night light, novelty light.
16 different static colors: you can press color buttons to select single static color for the lights, such as White (W), Red (R), Green (G), Blue (B) and other mixed colors.
6 vibrant lighting effects: you can also control lights to change color automatically.
Brightness: Press Up or Down button to increase or reduce the brightness of static lighting.
Wattage: 2.4W per piece
Light color: RGB
Power source: 3 * AAA batteries per piece (not provided)
LED quantity: 10 LED beads per piece
Ingress protection: IP67
Item weight: 53g / 1.88oz per piece
Item size: 7 * 7 * 2.8cm /2.75 * 2.75 * 1.10in(L * W * H) per piece
Package weight: 300g / 10.56oz
Package list: 19.7 * 18 * 5cm / 7.75 * 7.08 * 1.96in(L * W * H)
4 * RGB LED light
2 * 24-keys IR remote
1 * English Instructions