... It lights up. -D So why only 4 stars? Because, as with most other LED products also here no warm white light. Me personally cares not, I have long been accustomed to LED light and my eyes tolerate it very well. The dimming capabilities is so-so, the radiator starts at about 1/4 its original luminosity, but more is probably currently not feasible. For flicker (with me) nothing, all good.