1. China Lighting Installation GB 4785 20XX (1/4 )
SLR-28-01
China Lighting Installation GB XX (1/4 )
Comparison with current UN R48-06
UN-ECE R48.06
GB XX / 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 :
§ 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 (§ )
* Missing last specifications for flashing mode in §5.6.1 Presence (added in UN R )
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-R
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

2. China Lighting Installation GB 4785 20XX (2/4)
Comparison with current UN R48-06
UN-ECE R48.06
GB XX / 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 § )
* 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 § 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-R in §
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 § 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

3. China Lighting Installation GB 4785 20XX (3/4)
Comparison with current UN R48-06
UN-ECE R48
GB XX / UN ECE R48-06
compatibility
Comments
6.21. CONSPICUITY MARKINGS
???
Reference to these China regulations
- GB Retro-reflective Markings for Trucks and Trailers
- GB 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

4. China Lighting Installation GB 4785 20XX (4/4)
Comparison with current UN R48-06
UN-ECE R48
GB XX / 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 § :
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)
VOLTAGE OPERATING CONDITIONS
Testing voltage specified by test agency in China
GOODS VEHICLES
Specific requirement in GB §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