1) This system series primarily design for pint-size fountains, water stream, its Spray height 20cm-100cm,power of solar panels is 0.8 W-6W. 2) We use brushless pumps with long life, if the customer do not need battery, we will suggest the customer to purchase the system with a start-up controller, so that the pump can normal work in low-light circumstances. 3) It’s Easy installation, only need the user inserting the plug with the solar panels,less maintenance even without maintenance.