The CDVI SIS-SSA is an LED traffic light system that can be used in access control solutions to let people know when they can and cannot enter a premises. For example, it can be used as part of Hikvision’s Density Control Solution to limit the number of people on a premises at any one time. This solution saves business owners time and money when enforcing social distancing in the fight against Coronavirus. Architrave sized design. 115 (L) x 44 (W) x 33 (D) mm. 12V DC.