Lamp Warmer

When turned on, the heating bulb warms the wax from the top down. This slow melting process releases the candle's scent without setting fire to the wick. Warmers are designed to keep the wax from melting as quickly, and can therefore help you maximize the lifespan of your scented candle.First, some basics. Most disposable hand warmers contain a mix of iron, water, activated carbon, vermiculite, cellulose, and salt. Once exposed to air, the iron oxidizes and releases heat in the process. After all the iron has reacted, the hand warmer is done and ready for the trash.