71140 SERIES LED DOME LIGHT, PRIMARY & EMERGENCY LIGHTING. Model 71140 is an LED alternative for to Grimes 34170 (Dome Light) used on Bombardier Global Express, Challenger 600, 601, 604; Gulfstream GIII, GIV; Learjet 54, 56, 60 and Sikorsky S76. Primary operating voltage is 28V, an emergency circuit at 5V is provided for long-life lighting on an alternate power source. Spun aluminum assembly 5.5 inches outer diameter, 3.83 inch recessed inner diameter with a 1 inch recessed depth. Item ships with three flying leads, a ground, a 5V line and a 28V line.