I think this solution has been mooted by some AGL manufacturers. If implemented, it might overcome the issue. Airports examining the potential of this will have to explore the take-up of EVS operations by their customers...this seems to depend on where the operators are in their equipment cycle, i.e. retrofitting EVS to the current fleet is probably too expensive an option, but building it in on the production line would make sense. For future proofing, incorporating LED lights with an IR element would offer reduced running costs, greater light longevity, and EVS capability.