The Arri Flicker Analyzer measures and tests for any flicker present in any AC supply of HMI lamps powered by magnetic (non-electronic) ballasts, halogen lamps and incandescent bulbs. It also checks the scan rate of TV monitors and computer screens. This small, hand-held analyzer gives results in about 5 seconds. It is used in film, TV and video work, cinema and projection and labs and workshops for lighting. The Flicker Analyzer is powered by a 9 V battery, available separately.