10 Pack Small Submersible LED Lights with Remote, Battery Operated Color Changing LED Tealight Waterproof Underwater LED Lights for Pool Fountain Pond Vase Party Wedding Centerpieces Decoration
Brand: Aksipo

If you thought the lights weren't working, you just need to screw them on tighter..tighter than you might think you should (which makes sense, given the water proof nature of them).
Features:
100% Waterproof Design.
Durable ABS material ,it is not easy broken and catch fire.

Super Bright Beautiful Multicolors :Pure White, Warm White, Red, Green, Blue, Teal, Purple or other colorful lighting.

2 replaceable CR2450 batteries,compare to the CR2032 batteries. It is triple capacity. Last longer(Over 36hours consistantly) and brighter.
The multi color led light can be turned on or off by romote control,using submersible led lights as decor lights can create a sweet atmosphere when you are partying with your friend.
This Submersible LED Lights are Reusable RGB LED lights - Perfect for lighting up vases,fish tank,bowls,bathtub,or any water filled containers.
Specifications:
Wattage: 1W ,it is bright but only one watt, Save energy
Dimension: 3.8CM
Waterproof Level: IP67
LED Source: 3pcs SMD5050+ 2pcs SMD 2835
Power Source: 2pcs replaceable CR2450 batteries installed
IR Remote Battery: CR2032 Button Cell batteries installed
Package included:
10 * Submersible LED Lights (2pcs CR2450 batteries included)
2 * IR Remote Controller (1pc CR2025 Battery included)

【Widely Use Underwater Led Lights】: Re-usable, waterproof, wireless submersible LED lights, perfect for any water filled table centerpiece and adding accent lighting on a party, wedding and event. Placed in vase,pool, fountain, pond and waterfalls.
【Super Bright RGB LED Lights】: This 1.5inch LED Light with 3pcs SMD5050 RGB LEDs, 1pc SMD2835 Pure White LED, 1pc SMD2835 Warm White LED. It is Much more brighter than any small submersible LEDs with similar sizes. But you can adjust the brightness for them.
【Remote Controlled,Multiple Colors& Multiple Modes】: Package come with 2pcs infrared remote controller,one remote can use for all the lights. You can choose 13 different colors and 4 color changing programs(Flash/Strobe/Fade/Smooth), which produces cool and magic atmosphere as your wish.
【100% Waterproof IP68 Design】: We design it to be 100% waterproof. If you want to active the light. You have to twist it tightly. And when it closed well. It could be waterproof. The rubber O-ring can stop any leak.
【Long Working Time CR2450 Battery】: 1 x CR2450=3 x CR2032. We offered 2pcs CR2450 Batteries inside of the light. Which provide a 36hours consistantly on life. Triple battery life than normal CR2032 batteries. Battery is replaceable.