Ornata Chroma Mecha-Membrane owner, I don't know about most of you, but personally I am literally allergic to any flicker, this is why I cannot stand poorly engineered lights or CRT TV's, both are equivalent to driving nails into my retinas and giving me a seizure. The moment I plugged the keyboard into the USB I was horrified that the keyboard I wanted for so long has such a horrible flaw, and the worst thing of all, it cannot be fixed in any way unless they redesign how the LED's are driven. This horrible flickering effect comes from dimming the LED's by lowering the current instead of doing it by regulating voltage, so there is absolutely nothing that can be done. Another horrible design is the fact that this particular keyboard that only has green light, has white background, so 90% of the light comes from around the keys instead of from the keys, thus, drowning out the whole point of having back-light inside the key. If the background wasn't reflective, the flickering would be less of an issue, because it wouldn't be as eye-stabbing. Finally, right side of the keyboard having ;: /? \| ,< .> keys upside down is really stupid. Here is a picture I shot capturing the flicker every one of you sees and either ignores or suffers it. (you can see it yourself when it's in your periphery, when you use your phone and scroll around in it, keyboard in the background will have amplified flickering). You can otherwise capture this using slow motion video using your phones and moving it side to side, proof I am not nuts: The last nail in the coffin was the fact that I needed to register an account and have my keyboard connected to the internet if i wanted to change some settings, if that wasnt enough, Version 3 didnt even show my keyboard. I will play with it until the end of the day, and then 90% send it back, and buy the cheap $15 keyboard without N-key rollover, but better light. Update: its so bad I literally cannot sit at my computer, I had to turn off the backlight completely, I am dumbfounded how nobody has had any concerns about this. Update 2: effect is much less if the light is on 2nd setting, although now I cant see the keys, can see the background though. Useless. Update3: comparison to the broken keyboard I was hoping to replace, as you see, zero flicker, and keys are brighter Final thought, the green color from the pictures is fern green, in real they use acid green which is even more eye piercing.