China Lighting Installation GB 4785 20XX (1/4 ) SLR-28-01 China Lighting Installation GB 4785 20XX (1/4 ) Comparison with current UN R48-06 UN-ECE R48.06 GB 4785 20XX / UN ECE R48-06 compatibility Comments 6.1. MAIN-BEAM HEADLAMP * Complete different method for evaluation of maximum luminous intensity * No requirement to detect bicycles for automatic main-beam switching 6.2. DIPPED-BEAM HEADLAMP * Headlamp levelling device Additional requirement in GB 4785 : §5.2.6.2.4 cutoff line height adjustment device allowed if vehicle structure insures vertical inclination requirement * Automatic switching Transitional provisions for DRL/dipped beam automatic switching with alternatives allowed for 3 years after implementation date. Additional alternative to DRL : automatic switch of front (and/or rear) position lamps in day time. * Testing voltage for measurements Specified by test agency. 6.3. FRONT FOG LAMP Only slight differences in translation for some paragraphs 6.4. REVERSING LAMP 6.5. DIRECTION-INDICATOR LAMP * Difference in requirement for evaluating distance between dipped-beam headlamp and direction indicator in case of AFS (§5.5.3.2) * Missing last specifications for flashing mode in §5.6.1 Presence (added in UN R48-06.09) 6.6. HAZARD WARNING SIGNAL 6.7. STOP LAMP * S3 and S4 devices mandatory for Multi-purpose vehicles too. * No failure tell-tale as in UN-R48-06.08 6.8. REAR REGISTRATION PLATE Exact copy of UN-R48-06 requirements Same requirements as in UN-R48-06, but wording is different Requirements close to UN-R48-06, but with some differences

China Lighting Installation GB 4785 20XX (2/4) Comparison with current UN R48-06 UN-ECE R48.06 GB 4785 20XX / UN ECE R48-06 compatibility Comments 6.9. FRONT POSITION LAMP * Many differences in translation that lead to ambiguity and misunderstanding. * Optional separate circuit-closed telltale (§5.9.8) 6.10. REAR POSITION LAMP * Specific requirement in GB 4785 on geometric visibility for goods vehicles, special vehicles with GVW more than 4,5000 kg (in §5.10.5.2) * Optional separate circuit-closed telltale (§5.10.8) 6.11. REAR FOG LAMP Only slight differences in translation for some paragraphs 6.12. PARKING LAMP More severe requirements in GB 4785 §5.12.7 Electrical connections : "a device which automatically deactivates these lamps (e.g. as a function of time) is prohibited" 6.13. END-OUTLINE MARKER * Wrong translation in GB 4785 : only 'front/rear' lamps instead of 'visible from the front/rear’ * Missing requirement from UN-R48-06.07 in §5.13.9. 6.14. REAR RETRO-REFLECTOR, NON-TRIANGULAR Exact copy 6.15. REAR RETRO-REFLECTOR, TRIANGULAR 6.16. FRONT RETRO-REFLECTOR, NON-TRIANGULAR Missing ‘reflector’ in GB 4785 §5.16.1 Presence 6.17. SIDE RETRO-REFLECTOR, NON-TRIANGULAR 6.18. SIDE-MARKER LAMPS 6.19. DAYTIME RUNNING LAMP DRL still optional device in GB 4785 draft regulation, but requirements are the same Exact copy of UN-R48-06 requirements Same requirements as in UN-R48-06, but wording is different Requirements close to UN-R48-06, but with some differences

China Lighting Installation GB 4785 20XX (3/4) Comparison with current UN R48-06 UN-ECE R48 GB 4785 20XX / UN ECE R48-06 compatibility Comments 6.21. CONSPICUITY MARKINGS ??? Reference to these China regulations - GB 23254 Retro-reflective Markings for Trucks and Trailers - GB 25990 rear-marking plates for vehicles and their trailers 6.22. ADAPTIVE FRONT LIGHTING SYSTEM (AFS) * Difference in total luminous flux criteria UN-R48 : 2,000 lm per side GB 4785 : 4,000 lm in total * Slight differences in translation for some paragraphs 6.23. EMERGENCY STOP SIGNAL Exact copy 6.24. EXTERIOR COURTESY LAMP Exterior courtesy lamp allowed, subjected to §4.31 The external lighting and light-signalling devices that are not defined by this Standard can be activated if the vehicle is stationary and one or more of the following conditions are satisfied, but validity of external lighting and light-signalling devices defined in this Standard shall not be prejudiced: -- The engine (propulsion system) is stopped; -- A driver or passenger door is opened; -- A boot door is opened. 6.25. REAR-END COLLISION ALERT SIGNAL * Activation period of RECAS not defined in GB 4785 ( (not more than 3 s in UN R48). 6.26. MANOEUVRING LAMPS Only slight differences in translation for some paragraphs Exact copy of UN-R48-06 requirements Same requirements as in UN-R48-06, but wording is different Requirements close to UN-R48-06, but with some differences

China Lighting Installation GB 4785 20XX (4/4) Comparison with current UN R48-06 UN-ECE R48 GB 4785 20XX / UN ECE R48-06 compatibility Comments 5.7. LAMPS DEFINITIONS * Missing definition of the projection plane for apparent surface evaluation (stop lamps, direction indicator lamps) *Single lamps composed of two or more distinct parts : requirement not applicable to main-beam, dipped-beam and front fog lamps * Incorrect English translation : risk of confusion 5.8. INSTALLATION POSITION Some errors in English translation 5.11. POSITION LAMPS Additional requirement in GB 4785 § 4.11.1.4 : Additional alternative to DRL with automatic switching of front and/or rear position lamps 5.15. COLOURS * Red colour possible for all side reflectors (not only the rear-most one) in GB 4785 * Additional marker lamp for draw-bar trailer (not present in UN R48) 5.27. VOLTAGE OPERATING CONDITIONS Testing voltage specified by test agency in China GOODS VEHICLES Specific requirement in GB 4785 §4.29 concerning light emitting surface of rear position, rear indicator and sop lamps for goofs vehicles, special vehicles and trailers 4. DEFINITIONS * Conspicuity markings : more restrictive definition in GB 4785 * AFS control signal : input (V, E, W, T) and output signals are considered in GB 4785 * Lamps : some imprecisions in the definitions Exact copy of UN-R48-06 requirements Same requirements as in UN-R48-06, but wording is different Requirements close to UN-R48-06, but with some differences