The Avigilon H4 Multisensor camera combines self-learning video analytics with exceptional coverage, featuring 3 or 4 individually-configurable sensors that can be positioned to monitor virtually any ...
Our test concentrated on H4 or 472 bulbs. These have been around since the Sixties and have two filaments, one for dip and the other for main beam. They are used in cars with single headlamps.
For the halogen lamps we returned to the double-filament dip and main-beam H4 - we tested the former - and sought out those promising 200 per cent more light somewhere in the beam. To ensure we ...