Rechargeable candle lights: These votive candles are designed to be rechargeable. You can easily charge all the candles at the same time using the included USB charging cable with 6 ports. Fully charged in just 3 hours, each candle provides up to 24 hours of lighting time. No batteries required. Remote and timer: The smart remote control allows you to turn the LED candles on or off, adjust brightness, select flicker mode (fast or slow), and set the timer (4, 6, or 8 hours). Absolutely safe: Unlike traditional candles, these flameless LED candles provide the warm ambiance of real tea lights without the risk of an open flame. Ideal for homes and events with children and pets. Right size: Each electronic candle measures 4.8 x 4.8 x 6.8 cm. Designed to fit easily into lanterns or glass holders. This versatile set enhances any decor and is perfect for home, weddings, and holiday displays. Features: Material: ABS Size: 4.8 x 4.8 x 6.8 cm USB rechargeable model: single battery 120 mA Button cell model: includes 2 CR2450 button cell batteries (lasts 20–40 hours) Functions: 16 light colors, 4 color-changing modes, 3 timer settings