Excellent quality and has nothing to envy what I was able to find in large specialized surfaces and which was especially has a very different prices. All used materials whatsoever that the steel plate must be at least 5 millimeters thick, tempered glass is almost 1 cm thick, the inner case must be I think in cast aluminum with a small stainless steel cable gland ( small flat for the cable gland is very small) because there is only a single cable gland so I see how faure the through wiring. At the level of the lamp, it must be put up bulbs I think up to 6.5 cm high! Comes with spare screws in case, instructions 3 languages. Again a super fast amazon control; ordered on Tuesday and received on Friday is 10 days before the maximum date announced! Bravo and again delighted with my order because buying cheap does not always mean buy me ......