50L horizontal yellow tint, any kind souls can help me ?

Started Feb 3, 2010 | Discussions thread
Henrik Herranen Senior Member • Posts: 1,722
Re: 50L horizontal yellow tint, any kind souls can help me ?

Dale Buhanan wrote:

Make that 60 Hz and you're absolutely right.

No, make that 120 Hz and you're right. Typical fluorescent lights blink on both power half-cycles so if you have 50 Hz mains, lights blink at 100 Hz, and with 60 Hz mains you get 120 Hz blinking. Still, although the numbers were incorrect, the answer was essentially correct: it's exactly the fluorescent tubes that cause false colours.

This can be avoided if you get an electronic transformer unit (don't know its correct technical name in English). They have AC/AC transformers that increase the blinking frequency to e.g. 30 kHz and then the false-colour effect is just gone. I've installed one in my bathroom lamp and I'm going to buy more for my other tubes as well.

Kind regards,

  • Henrik

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