Essex Series Interior vehicle lights feature all new Torus LED Technology. Torus LED technology provides an exceptionally bright straight-on and off-angle signal. Essex Series lights also feature a new flared visor allowing for much greater off-angle coverage particularly useful when approaching intersections. In addition, these lights feature a new locking swivel feature which allows the light to fit to any windshield. These lights offer 27 user selectable flash patterns, split color options, and meet all applicable SAE and California Title 13 specifications when properly configured. Choose from 2 available sizes: single or dual head.