Trending Ps4 Gaming Setup With Led Lights - A yellow light bar on the controller when the ps4 is on standby…and plugged in means that it's the yellow light can mean different things when playing games that actively use the light bar as a visual certain games take advantage of the rbg led in the controller. When you press the ps button, the light bar will glow in a uniquely assigned colour. Ps4 Gaming Setup With Led Lights : This is the craziest gaming setup we've ever seen: