Abstract: A light emission device for performing tests on at least one object and provided with at least one lighting unit having at least one electronic support on which a plurality of LED light emitters are disposed in a flat matrix, and at least one command unit, wherein the lighting unit comprises at least a connection interface, a plurality of lighting channels, each consisting of one or more light emitters, and at least a control element configured to measure the temperature of at least part of the light emitters; and wherein the command unit comprises a plurality of command channels independent of each other and each configured to deliver at output a given electric signal to at least one corresponding one of the lighting channels, a command interface electronically connected to each of the command channels and configured to be selectively interconnected with the connection interface, and at least one connection input configured to be electronically connected to the control element.