The power switch's operability was very intermittent. It only worked every now and then. The I.R. illuminator was unfortunately tied into the power switch which was a spring type togle switch. I also noticed that colder temperatures(within operable ranges) had a very negative impact on the devices ability to function.
Pros: tube quality was amazing
Cons: power switch is garbage
This review was written in the old system and had content requirements that are different than reviews written today.