3G vibration tested, heavy-duty die-cast aluminum housing and door, Available in HID or LED lamp sources, 4000K CCT, 70 CRI standard for LED versions, Tool-less removable power tray for ease of maintenance, Available in Type III and Type V distributions, Multiple top, cage and finial configurations, 0-10V dimming available with LED versons, Base casting slip fits over a standard 3" O.D. tenon