Light fitting unit having releasable immobilizer

摘要

A light fitting unit in which the closure device includes a slider which can move on its base and is adapted to hook onto the diffuser, the slider is associated with releasable immobilizing means operated by the diffuser and adapted to oppose movement of the slider in the direction toward its closed position when the diffuser is in its open position and the safety switch for controlling the supply of electrical power to the unit is itself operated by the slider.