Using these LED votive candles is super easy. First, locate the on/off switch at the bottom of the candle. Simply turn it on, and you'll have a warm white glow. Since the batteries are replaceable, when the light starts to dim after about 50 hours, just open the battery compartment and swap out the CR2032 button cell battery. Make sure to handle the candles gently as they're made of plastic. Keep them away from water because they're not waterproof. When not in use, store them in a dry place to maintain their glittery look and performance.