You can use them for your traditional events festivals, wedding, parties or any such special occasions. You can Keep them Lighted or switch it off when not required and then Switch back on. Led Lighted so they are Flameless and Smokeless that makes them pollution free. These Diyas come with button-batteries that are easily replaceable after the batteries dies. battery-operated diyas are powered by 3 button cell (LR44) 357 1.5V each [installed and included] that will last at least 55+ hours. Decorate your Home on special occasions with this set of Water Led Diya’s that are Smokeless and Flameless. These led lighted Diya’s let you light any corner of your home since you don’t have to worry about fire and Flame Precisely designed so that it looks very similar to clay Diya. You can use them for your traditional events festivals, wedding, parties or any such special occasions.