UK Registered Design 2106814 (Fitting). UK Registered Design 2106821 (Lamp). PAT. NO. GB2384550 (Release Mechanism). PAT. NO. GB2384549 (Lamp Reflector). Extended spring fixing posts allow installation in double thickness plasterboard. Supplied with UK registered design hexagonal lamp with patented reflectors for optimum light output. 5 Year guarantee. Note: The guarantee is invalid if used with a non-Aurora fire hood.