Tealights or tealights candles
A tealight (tealight candle | party light tealight | led tealight | long burning tealight) is a candle in a thin metal or plastic cup that liquefies completely when the candle is lit.
Tealights are a popular approach to accent lighting and heating aromatic oils that are well-liked by everyone and are so readily available that you can easily have them on hand. Tealights are Sold in packs of 10. (Picture is for illustration purposes only)