That's why linear fluorescent fittings never seem out of place in a
kitchen. Unlike a fleet of ceiling downlighters which tend to generate
high contrast self shadowing, they let you see what you're doing with
Back when the only efficiency competitor to a linear fluorescent
fitting was CFL (of slightly lower efficiency), you _still_ wouldn't
replace a 40W 4 foot tube (52W consumption with inductive ballast)
with the lumen equivilent in the form of two or three seperate
electronically ballasted 20W CFLs on the grounds of high contrast self
shadowing effects, even if the CFLs were spread out (you just
Now that we have electronically ballasted 4 foot fittings (36W
consumption), such a scheme would make no sense at all so there are
very sound reasons for the manufacture of LED equivilents to the
linear fluorescent tube (not restricted solely to a form that can
be used as a "Fluorescent tube Drop in Replacement", useful as that
I'm sure we'll see such linear LED lamps become available as an
integrated linear luminaire screwed or clipped to the ceiling as a
single unit (50,000 hour ratings will be the big factor in supplying
'disposable linear lamp fittings')
My Gawd, that looks bloody awful!
 I'm deliberately excluding those "LEDs on a sticky backed roll of
tape" alternatives. Such rolls of LED lamps have their uses but not as
a ceiling fitting.
The current ones are still using relatively low efficiency LEDs (the
larger effective surface area reduces the heat loading sufficiently to
allow the use of lower efficiency LEDs to give the required
illumination levels expected from the linear fluorescent tube it's
intended to replace).
 More probably designed to be screwed/attached directly to a
standard ceiling rose. They'll certainly weigh a lot less than the 5
foot fitting that's been hanging off the ceiling rose in my 'office'
(a bedroom converted to such use) for the past 15 years or more.
I am considering modifying my
to take an LED replacement lamp.
But I take it you no longer want a fluorescent type fitting. The other
options (depending on what work you want do do) is as you know more
The last time this Netaline fitting was discussed and links to those
photos posted, I'm pretty sure the lamp relied on resistive ballasting
to both save weight and bulk. Although this destroys most of the
efficiency benefit, there's still enough of a gain to make it a
worthwhile alternative to tungsten filament lighting (much longer lamp
life as well as more lumens per watt).
Read the text, it's done by a length of resistive wire which travels the
length of the fitting. We had a similar fitting in the kitchen when I
was a youngster, it was similarly slim, lacking a conventional ballast,
but had a centre-mounted ceiling bracket. The tube was held in place by
two slide-on plastic cups at each end. The starter was concealed in one
Tried to find a pic but failed.
:: je suis Charlie :: yo soy Charlie :: ik ben Charlie ::
On Friday, March 27, 2015 at 7:13:33 PM UTC, ARW wrote:
As people do such mods the originals get ever rarer and of more interest to
a few. I'd keep it as is. You could solve the resistor problem by clipping
on an easily removed shorting lead & adding an external C ballast.
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