This disclosure pertains to apparatuses, methods, and computer readable media for red-eye removal techniques using multiple recognition channels. A lamp control method for an electronic ballast includes sensing phase-controlled power, determining on-time for the sensed phase-controlled power, and controlling lamp dimming in response to the on-time. The cutting insert has a median plane between the first and second end faces, and a through-bore axis extending perpendicularly through the median plane.