The Living Light lamp is supplied with a water reservoir which needs to stay between the minimum and maximum indicated water level, otherwise it will cause damage to the microbial fuel cell. Normally, you need to fill the reservoir with water every week, but this depends on the ambient temperature. The water can be added with an ordinary watering can in the dedicated gap in the water reservoir (just above the min & max indication).

If the water level has remained unchanged for longer than a week, go to water supply blocked.