The new lighting for the Louvre served as ERCO's pilot project for the use of the brand new 20W metal halide lamp from Philips together with corresponding electronic control gear. The lamp's geometry follows that of the previously used 100W QT12 low-voltage halogen lamp. This means the same, tried and tested reflector construction can be used for the new spotlight mounting trays.

Furthermore, experiences made in practical operation have lead to the new mounting plates being redesigned to a higher protection mode. A series of constructional measures simplifies maintenance. To regulate the brightness, the luminaire mounting trays can be switched in groups.