... need any power, green and economic.4. Easy install, easy operation, fashionable.5. Well wind, snow ... CNP3030pcs58mm1800mm360mm470mm270 literDENO1800-CNP3636pcs58mm1800mm360mm470mm300 literSelective fitting: Controller, reflector, Electrical heater, magnesium bar.P.S.1. Controller can display ... water level, automatically water loading etc.2. Electrical heater, which is backup fitting when it is rainy3. ...