Teelichte ~8h 50 pcs Universal heaters with a burning time of about 8 hours. Odorless, so they can be used in scented fireplaces as a heater for oils. Its size makes it suitable for most candlesticks and fireplaces. Heater diameter - 4cm, height 2cm. P30-50 Heaters do not burn or smoke. They burn out completely. They can be used as a heat source in catering heaters.