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2 D Lights

JOHNPT · 2009-07-18 10:11:24

Is there any big difference between 2 D light fittings which take the '2 Pin bulb' or the '4 Pin bulb' type? Thanks in advance for any replies

18-07-2009 11:11am

#1

JOHNPT

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Is there any big difference between 2 D light fittings which take the '2 Pin bulb' or the '4 Pin bulb' type?

Thanks in advance for any replies

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Comments

#2 18-07-2009 2:56pm

brightspark

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The 4-pin variety use an external starter (which may be the same as those used in the long tubes or it may be part of the lamps control gear), and the 2-pin have a built in one.

You need to get the correct lamp for the fitting as they are not interchangable.

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#3 19-07-2009 5:43pm

davelerave

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the 2-pin lamp w/internal starter works with conventional ballast .the 4-pin works with conventional or electronic control gear and has options for emergency and dimming.
http://www.gelighting.com/eu/resources/literature_library/product_brochures/downloads/biax2d_datasheet_0506.pdf
short on-periods apparently shorten life dramatically but i've used plenty anyhow regardless

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