A bright LED light that can be placed underwater & will last upto 48 hours, it can be turned on/off & the batteries are replaceable (2 x CR2032). The Submersible Flora Tea Lights are great for floral designs in glass vases & when placed in the bottom of vases facing upward it illuminates the entire vase enhancing the water & stems. 2.2cm height x 2.7cm diameter Features • Wireless • Long lasting • Compact in design • Super Bright LEDs • Completely waterproof • On/ Off switch • Replaceable batteries Functions • Steady On • Candle Flicker • Flashing