Here's a view of the left outboard landing light, stowed and unstowed.
These lights are actually a combo landing and taxi light. for taxi they extend all the way, and for landing the partially extend to compensate for the angle of attack of the aircraft when flaring. These lights also have a clutch mechanism that blow the lights to the retracted position if the aircraft exceeds 180 knots. They can be unstowed again under 180 knots after some switch manipulation. And you thought they were just silly old landing lights!