5.4.1. The headlamp shall only be equipped with (a) gas-discharge light source(s) approved according to Regulation No.99 and/or (an) LED module(s).
In the case of the use of additional light source(s) and/or additional lighting unit(s) to provide bend lighting, the additional light source(s) shall correspond to and the additional lighting unit(s) shall only be equipped with approved filament light source(s) covered by Regulation No. 37, provided that no restriction on the use for bending light is made in Regulation No. 37 and its series of amendments in force at the time of application for type, and/or LED modules(s). 		a0c0