1、This kind pump is equipped with automatic switch. If the pressure is too high. It will stop working. 2、It have over-heat protection and can work for a long time. 3、 Small size but strong; Low consumption & High Efficiency. 4、Please note this pump must not used in dirty water. You need to equip a filter setment in inlet. 5、Application scenarios: public green space, home gardening, agricultural production and gardening production. Features: This kind pump is equipped with automatic switch. If the pressure is too high. It will stop working. It have over-heat protection and can work for a long time. Small size but strong; Low consumption & High Efficiency. Please note this pump must not used in dirty water. You need to equip a filter setment in inlet. Application scenarios: public green space, home gardening, agricultural production and gardening production. Specifications: Condition:100% Brand New Color: As shown in the picture Rated Voltage: 6V Size: Approx.7*4.2*2.8 cm/2.8*1.7*1.1 in Package List: 1*Micro Water Pump Note: Because there was a manual measuring ,the size may has 1-2cm/inch difference. The color may be slight different due to the condition or light or different monitor.