ncx (29)in #best-4k • 8 years agoRE: Best Reviewed Flicker Free 27-32" 4K MonitorsFlicker Free=marketing term for no LED PWM Dimming (direct current) or a high enough frequency (18-20khz is used by…ncx (29)in #best-4k • 8 years agoRE: Best Reviewed Flicker Free 27-32" 4K MonitorsThat's my post.