Home » English riddles » General Subjects » Electrical Riddle No.50 – Lamps flicker(visual comfort) » Reply To: Electrical Riddle No.50 – Lamps flicker(visual comfort) Reply To: Electrical Riddle No.50 – Lamps flicker(visual comfort) 2021-08-03 at 11:08 am #2396 Sinnadurai Sripadmanaban Has anybody tried it?. What will be the output for other types of lamps?.