As an industrial and scientific enthusiast, I was impressed with the sturdy build and spacious interior of this universal enclosure. The 158mmx90mmx60mm size was just right for my wiring and connecting needs. As a result of my tests, i determined that this enclosure can withstand extreme temperatures and harsh conditions. However I did notice that the cover was a bit difficult to attach securely .Overall, this enclosure is a great addition to any industrial electrical toolkit..