Così mi dicono:
the Matrix light is a high quality T5 aquarium ligth in diferent models, in standard there is no protection glasses, because it is not really necessary, but there is an option for the Matrix, for protection Glass, this is then a special plastic glas.
This is very important to tell that at the ordering time.
http://www.giesemann.de/213,1,,.html
I hope I could help you, do not hesitate to contact us for more information
Best regards,
Isabelle Ducreux-Csernak
___________________________
Giesemann Aquaristic GmbH
Bürdestr. 14
41334 Nettetal
Germany
(Amtsgericht Krefeld, HRB 8378)