1----Rechargeable candle lights: These votive candles are designed to be rechargeable. You can easily charge all the candles at the same time using the 1 USB charging cables with 6 ports included, which can be fully charged in just 3 hours and has 24 hours of lighting time. No need to waste money to buy batteries. 2----Remote and Timer: The smart remote control can control these lights candles turn ON/OFF, flicker mode (fast or slow ), brightness of light (increase and decrease) and timing mode (4 hours timer, 6 hours timer, 8 hours timer ). 3----Absolutely safe: Compare with traditional lights, Our flameless led lights candles offer all the ambiance of traditional tea lights candles without the danger or mess of an open flame. This is great new for households and parties that have curious children and pets. 4----The right size: The size of each electronic candle is: Height: 6.8CM, Diameter: 4.8CM. It can be easily put into a lantern or glass cups. These candle set is a beautiful, versatile addition to any decor, Perfect for home, weddings, holiday decorations. Features: Material: ABS Individual size: 4.8*4.8*6.8cm USB rechargeable model: single battery 120 mA. Button cell model: 2 CR2450 button cell batteries included (can be used for 20-40 hours) Functions: 16 light colours + 4 colour changing modes + 3 timer settings