LED cup activated by liquid - Idea4fun

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LED cup activated by liquid - Idea4fun

Taidacent Wireless Led Uplights and Coil Inductive PCB Charger Pad Wireless LEDs Lights Lamp Magnetic Levitating Floating Charging Station Type C 5V (Inductive PCB with 10PCS Mixed 4.3mm LEDs) : Tools

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LED drinking timer - A glowing pad / coaster reminding to drink water

LED cup activated by liquid - Idea4fun

Taidacent Wireless Led Uplights and Coil Inductive PCB Charger Pad Wireless LEDs Lights Lamp Magnetic Levitating Floating Charging Station Type C 5V (Inductive PCB with 10PCS Mixed 4.3mm LEDs) : Tools

LED cup activated by liquid - Idea4fun

LED drinking timer - A glowing pad / coaster reminding to drink water