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Science Forum Index » Engineering - Lighting Forum » UK CFL's dimmable on a leading edge dimmer
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| NeilCarmichael |
 Posted: Tue Feb 20, 2007 7:03 pm |
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I know there was discussion's about them before so when I recently saw
them on sale on bought one to try them out and to report back.
I bought a megaman gsu111s an 11w ES cap 230v the tube is a spiral but
wrapped up in a "rubber" bulb-shaped diffuser, all for ten quid.
to give it a "real world" test I put it in parallel with a couple of
60w tungsten's on a domestic leading edge dimmer.
the one word to sum them up it "weird" firstly they don't strike till
you take them above 50% and after they have struck you can bring them
down a bit.
when they dim there is a visible jump in brightness and what it is
doing in brightness level seem to bear little comparison to the two
tungsten in parallel to it, also now and again it'll make the tungsten
flash like old fashion fluorescents starting.
all that said thanks to bulb shaped rubber cover its a discrete
upgrade and I am glad to be doing my (lazy) bit for the environment. |
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| Adam Aglionby |
| Posted: Tue Feb 20, 2007 10:23 pm |
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On 20 Feb, 23:03, "NeilCarmichael" <back_a...@hotmail.com> wrote:
Quote: I know there was discussion's about them before so when I recently saw
them on sale on bought one to try them out and to report back.
I bought a megaman gsu111s an 11w ES cap 230v the tube is a spiral but
wrapped up in a "rubber" bulb-shaped diffuser, all for ten quid.
to give it a "real world" test I put it in parallel with a couple of
60w tungsten's on a domestic leading edge dimmer.
the one word to sum them up it "weird" firstly they don't strike till
you take them above 50% and after they have struck you can bring them
down a bit.
when they dim there is a visible jump in brightness and what it is
doing in brightness level seem to bear little comparison to the two
tungsten in parallel to it, also now and again it'll make the tungsten
flash like old fashion fluorescents starting.
all that said thanks to bulb shaped rubber cover its a discrete
upgrade and I am glad to be doing my (lazy) bit for the environment.
Thanks for the review, wondering if the 2 tungsten in paralell altered
dimming abilty at all?
Heres link to makers site:
http://www.megamanuk.com/products/product.php?sid=17
Though am tempted to wonder about need it any dimmer than 11W ;-)
Adam |
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| Adam Aglionby |
| Posted: Tue Feb 20, 2007 10:28 pm |
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| Andrew Gabriel |
| Posted: Wed Feb 21, 2007 12:07 pm |
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In article <1172024935.229382.44990@a75g2000cwd.googlegroups.com>,
"Adam Aglionby" <ledlight@gmail.com> writes:
Yes, and it's not meant to be dimmed by just setting the dimmer
knob to the level you want like a filament lamp would. You are
supposed to leave the dimmer on full, but momentarily dim it to
switch between the 4 levels. So it's not going to follow the
brightness of filament lamps on the same circuit.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup] |
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| NeilCarmichael |
| Posted: Thu Mar 08, 2007 2:49 am |
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ah, yes, one dimmer later and I've found that out now!
must read the small print more carefully :-)
basically it works a bit like switchdim but all in one package.
if I worked for a lighting control company I'd be dangerous, errr hold-
on a second.....
:-)
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