No electricity, No pump! Plant Waterers water your plant depends on soil moisture level. For big quantities, we can make each waterer customized by you, kindly tell us how long you need to water, how many plants you want to water at one time or any shapes you want etc. As well as some accessories can help you make a perfect watering, like anti-mosquito cap and cap adaptor etc. We have a full range of waterers to service for you.