Our solar floodlights (SFL) have received constant praise since the introduction of our first unit several years ago; since then, we've constantly updated them based on your recommendations. IP65 Rated Waterproof. ALT uses smart battery optimization during cloudy days or when the battery charge is low to extend run times by decreasing the light output. The Solar + LED Floodlight 2000 has two main modes of operation: motion detection and timer