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by amluto 2954 days ago
> All the problem I have, which I absolutely hate and drive me crazy are colour inaccuracy and flickering. Both of which are non existent to Halogen Lamp.

Not really true. The fancier halogen lamps (e.g. MR16s with reflectors that pass IR) have CRI below 100. Halogen lamps do buzz, especially when connected to a dimmer. (Many halogen lamps are 12V, too, and most of the transformers also buzz.) And they all flicker — the power delivered to the filament is roughly sinusoidal at 120Hz, and the thermal mass is low enough that there is a good amount of modulation in the light output. IIRC it’s about 30%. It just so happens that the residual 120Hz modulation is low enough that it doesn’t affect most people.

A crappy LED driver modulates much deeper than 30% at 120Hz and might even modulate at 60Hz. A good LED driver doesn’t.