... three time periods with a series of half-power IP66 Waterproof solar street light controller1, 8h, 4h, 2h, 1h, LED ... Light Orange blinking indicates the solar panel voltage.I: Unique cooling technology, the controller closed tight with waterproof, dustproof, moisture, corrosion, ... all settings, easy to use and intuitive IP68 Waterproof Solar Charge Controller for Street Light battery controller