Red Plug-in Night Lights (6pk)SLEEP FRIENDLY RED LIGHT: Hooga Blue Blocking Night Lights emit a gentle, red hue (625nm wavelength) that is completely free of blue spectrum light to encourage the production of melatonin in the evening and reduce eye strain. When you wake up in the night and walk through the house, our lights wont signal to your body that its time to wake up like other night lights would. DUSK TO DAWN SENSOR: With a smart dusk to dawn sensor, the night lights