Metal-Halide lamps give the best colors, next after the Sun, which is needed for one of my hobbies.

Sodium lamps gives superior amount of lumens per watts, they are perfect for lighting up my backyard especially if using at least 600W of singular lamp. I miss the times when cities were lighted by sodium, a blue-light pollution is one of the main reason of why I use to hate cities nowadays.

Also I use a cold-cathode fluorescent lamps in some places, they are almost as good as MHL and if used correctly (no often switch on/switch off) I need to replace them maybe once per 10 years. They are hardly to get nowadays, but I have enough of spare ones for all of my expected lifetime.

Not a gp, but my eyes can’t stand some LEDs. I don’t know the exact physics of it, but sometimes even a reflected/diffused LED light feels like I’m looking into a laser beam. Colors are also very off, like in a ~chroma fog that isn’t there. Other people don’t notice anything strange. I’d appreciate if someone explained why, because I’m a regular trichromat with no obvious vision deviations otherwise.