Flourescent strip light

[njkmr]

Hi Good morning .
Quick question.
Im replacing an old 6ft flourescent strip light in my utility room ,with same or similar type .
Looking at the screw*** catologue i see some are switch start circuit and a others are described as High Frequency .High frequency one being about 30 per cent dearer .
Can some one please give me some idea about the difference between the switch circuit one and the high frequency one .
Many Thanks .
Thought I would ask the question before making any mistakes on purchase .

 

[ban-all-sheds]

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http://books.google.co.uk/books?id=psCy1q96r3UC&pg=PA7&lpg=PA7
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[njkmr]

Thanks ban-all-sheds.

So am i right in saying HF are flicker free basically as well as more efficient/economical .?

We only go into utility now and then for washer/dryer etc so i may as well go for the cheaper option,as it is not on much at all .

Thanks Again .
Regards
Rob.

 

[Steve]

We have two switch start fittings in the shed. They use the roof as a sounding board, and they flicker slightly for about 20 minutes when its cold.

 

[njkmr]

Sounding board ???
You have lost me there fella .

 

[Steve]

When they vibrate (all the time) the whole roof vibrates with them.