The Malibu SolarSelect series provide top performance and quality for all seasons. These stylish landscape lights feature a Summer/Winter adjustment switch located on the back of the solar panel. High setting delivers the brightest output and will deliver approximately 1 hour of on-time for every hour of full sun. Use this setting from Spring into early Fall. Low setting lengthens on-time during late Fall through early Spring. During this time most locations receive fewer hours of full sun per day. Each fixture has 2 True White LED’s / fixture, which provide more uniform light distribution, and nearly 3X brighter output than Malibu’s other solar fixtures.