The immersion heating rod from ESN 999 is an ISI certified product. This is easy to use. One Of A Kind Immersion Water Heater, Totally Shock Proof Don'T Worry Just Drop It Into The Water Bucket and your hot water is ready. This is an ideal option for heating up water during winters. Please check compatibility of power socket before use - earthing recommended Keep safe distance from children, Swith off the current before taking heater out of water, Please observe the minimum and maximum levels given on heater plate, Don't Touch the water while current is on. Safe Heat, Elegeant Handle Design Shock Proof, ISI certified.