Smokeless and Flameless..= The Diyas are Led Lighted so they are Flameless and Smokeless which makes them pollution free. Perfect for Home decorations in every corner without any worry of fire and smoke. Made from PP plastic that is Safe and Non-Toxic. The Diya's have a battery Life of up to 300 hours. You can Keep them Lighted or switch them off when not required and then Switch them back on.. These are WATER SENSOR DIYAS These Diyas switch on when you put water on them(one spoon of water). Yes just like oil and ghee mitti Diya they are water diyas. As you drop water they illuminate a warm orange light similar to oil Diya creating a traditional ambiance in the atmosphere. Use these Diyas to decorate and lighten your home rangoli festivals or any special occasions and surprise your guest and neighbors with this unique water Diyas... Suitable for parties weddings bars dining tables hotels home decorations churches temples concerts holiday events promotional gifts outdoor activities etc. Specific Uses For Product: At Home OfficeFestivalsPooja ; Material Type: Plastic Color: Brown WIND PROOF - The do not switch off on any hard winds .. They are very stabel and long light standb