Schneider Electric Merten inserts MTN3159-0000 is a push button insert. Its matching mounting box can be recessed into the surface of the wall with flush type. Its fixing mode is by screws and claws. The push-button is made of metal, plastic, making it as resistant as possible. This push-button is SVHC (substances of very high concern) free too. Besides it is halogen free halogen free, which is good for your health. This is a 2-way push-button and the control type of this push-button is rocker. 250V is the rated operational voltage. And its rated current is 10. Besides, the IP rating of this device is IP20. Being environmentally friendly, this push-button is a green premium product too. And it is mercury free. As well as heavy metal free, taking care of the environment and your health all the time.