The Model 71140 (EDMO# 7114000) is an LED alternative for the Grimes 34170 (Dome Light) used on Bombardier Global Express, Challenger 600, 601, 604, Gulfstream GIII, GIV, Learjet 54, 56, 60, and Sikorsky S76. The primary operating voltage is 28 VDC and an emergency circuit at 5 VDC is provided for long-life lighting on an alternate power source. The spun aluminum assembly has a 5.5-inch outer diameter, 3.83-inch recessed inner diameter with a 1 inch recessed depth. This item ships with three flying leads, a ground, a 5 VDC wire and a 28 VDC wire.