My night vision cameras stopped functioning at night. Occasionally, movement will trigger one for a few seconds. i contacted customer service. I informed the rep of what exactly was going on and what i had done to diagnose the issue. The rep wanted nothing to do with helping me and suggested i try again later with someone else. i will never purchase their products again due to the actions of customer service.research other produc User's recommendation: .check out other companies and their reviews. do not expect support from this company.