Traffic light type SU it is a modern road signalling device. The housing is as good as PHG and the same mechanical damage and weather conditions resistance.
On the picture signalling device on the left side has double light source and the signalling device on the right side has LED module as a green light. The same solution is correct for PHG too.

Traffic light housing and lens whole are made of very durable polycarbonate material. Depending of order the light source can be a bulb or LED module. Moreover the traffic light can be sell as a single, double or triplechambers device. The lens diameter is : Φ 200 or

Φ 300; The presentation of lens kinds are in an attachment no 1.