TM 5-3610-294-13&P3-7. CEILING LIGHT ASSEMBLY. - Continuedb.Install light bulb (1) into safety cover (2) and replace end cap (4). Insert end with split safety ring (3) into springend of ceiling light assembly and press toward spring end until other end of light bulb (1) and safety cover (2) seats.Install split safety ring (3).Figure 3-4. Ceiling Light Assembly3-12