For precise, dark-sky-friendly illumination that cuts down on excessive glare and brightness, the polycarbonate glass can be adjusted up or down 90 degrees. Up to nine distinct illumination configurations are possible with the three wattage options of 28W, 35W, and 40W and the three color temperature options of 3000K, 4000K, and 5000K. This unit turns on or off during the day due to its integrated dusk to dawn photocell. This unit have four NPT 12" threaded hubs for additional accessories or conduit and a sturdy aluminum shell in addition to being made to weather the environment.