The lamp must be used in the water,don’t take it out of the water,or else it will get burnt very easily. If the lamp can’t work normally,please firstly take it out of the water and open the cover. In order to insure the lamp’s long life expectancy and expected efficiency,please wear the dry cloth gloves before fixing the lamp,not to touch it directly without wearing gloves. Please make sure that the lamp chimney is without any water and the lamp’s watts must be equal to or smaller than the previous one’s. Also make sure that the lamp chimney is screwed with the lamp shell very firmly before putting the lamp into the water.
Please clean away the algae on the lamp regularly,which will grow up very easily because of the lamp light and the heat