Fluorescent bulb questions ?
Short question but sorry, I cannot seem to shorten it; the actual question is in the last two lines .
My friend's outside light stopped working; Earlier today I was asked to replace the two bulbs; they had stopped working and seemed slightly brown on the ceramic part.
They are four pin fluorescents; I have not used these type before.
I went to Screwfix and their catalogue showed two bulbs that looked identical to the original but one model said for electronic ballast only and one type said for magnetic ballast only; the shop staff did not know what a ballast was and could not advise me, when looking at the original, which type to buy.
I went to Toolstation , no such distinction was made in their catalogue; I asked the guy about the ballast suitability; he did not know what a ballast was; I bought the one that seemed the closest in name.
I have never has to think about ballast types before buying a bulb before; but after buying the bulbs I found a sticker on the lamp saying -electronic ballast.
I stuck the first bulb in, it did not light.
I put the bulb, instead, into the next socket; it lit and stayed lit.
I put the remaining bulb in the first socket and both bulbs stopped working; whatever combination that I tried.
The original bulb was an Osram Dulux D/E 26w/840
The new bulb is a
sylvania lynx-de superia 26w 840 G24q-3
Item Weight 9 g
Product Dimensions 16.6 x 3.6 x 3.6 cm
Item model number 25927
Part Number 0025927
Colour Cool White
Maximum Compatible Wattage 26 watts
Voltage 240 volts
Specific Uses General purpose
Batteries Included? No
Type of Bulb Compact Fluorescent Light (CFL)
Cap Type G24q
EU Energy Efficiency Label A
Luminous Flux 1800 lumen
Wattage 26 watts
Wattage 26 watts
Bulb Features Low energy plug-in compact lamp
Colour Temperature 4000 Kelvin
Colour Rendering Index (CRI) 85
Average Life 10000 hours
Average Life 15000 hours
Bulb Length 167 millimetres
Warm Up Time 30 seconds
Lumen Maintenance Factor at the End of Life 95
I still do not know if it was the correct bulb or not but . . .
Here are the questions:
Are some bulbs suitable for both types of ballast ?
What happens if you put the wrong type in; does it just not work; or does it blow the bulb; or/and does it damage the lamp?