Dawn IS GRADUAL!
Reviews claiming that the dawn is not gradual and that the brightness suddenly ramps up at the end had me worried as a new owner. So I went ahead and watched the lamp carefully throughout a full 30 minute simulated dawn. I was relieved to see with my own eyes several levels of brightening each minute throughout the half hour. A free LIGHT METER APP downloaded onto my smartphone provided independent objective verification.
Rating: 4 stars