| Manufacturer: | Pro-Lite (Trading name of International Lamps Limited) |
| Model: | Daylite Helix SCR-11W |
| Application: | General Lighting/Decorative |
| Wattage: | 11W (21VA - pf=0.51) |
| Diameter (max): | 85mm |
| Length: | 110mm |
| Tube Length: | 240mm (approx) |
| Bulb/Tube material: | Glass, triphosphor (colour 864) internal coating. Blue-purple plastic coating on outer surface |
| Colour Temperature: | Deep blue coloured. |
| Peak output wavelength: | N/A |
| Total light output: | Unknown. |
| Rated lifetime: | 8000 Hours |
| Cap: | B22 |
| Operating voltage: | 240V AC 50Hz |
| Operating current: | 80mA |
| Warmup/restrike time: | 1 minutes/none |
| Cost (original): | Unknown |
| Place of manufacture: | Unknown |
| Date of manufacture: | Unknown, Possible Date code PA3687 Present on lamp |
| Lamp Status: | Working, presumed unused. |
| Related Pages: | Luxina Helix 11W Red |
The
initial impression you may get (as I did!) is that this is a cheaply
made coloured CFL. Fact of the matter is that technically you'd
be right - it's a very ordinary daylight colour temperature lamp with a very deep blue coloured
paint applied none-too-evenly to the outer surface of the tube.
The
reason for this however, is that this lamp dates back to before blue
CFLs were readily available. This lamp was intended to produce a cold blue/violet light in a decorative
Christmas display - and as such was made-to-order. This is why
I've not been able to track it down in International Lamp's
catalogues. It doesn't exist in there, because it never did - it
was custom made, I would imagine as part of quite a large order.
The
output from these lamps is a very deep blue (as can be seen in the shot
of it lighting my desk below) - the outer coating certainly doing its
job very well - assisted greatly by the fact that a daylight
temperature lamp was chosen as a starting point - I doubt it would have
been anywhere near as effective had a warm white lamp been used.
While technically it's not a brilliant bit of
kit - it's a bit of lighting equipment which was originally made to
order, rather than an off-the-shelf part, hence is rather rarer and
more interesting than it might otherwise be. Not often you find
custom made CFLs. Of course, this lamp serves little purpose now
that coloured CFLs are readily available, and is just an interesting bit
of lighting history now.
Luxina
and
Pro-Lite products seem to bear a striking resemblance to each other,
and I reckon that they may well be sourced from the same OEM, though
Luxina (See related pages above) is actually a registered trademark of International Lamps.
I
also have Pro-Lite SCR-18W lamps (18W version of this) which are
coloured as well - though these make use of a coloured phosphor rather
than an external coating like this. Otherwise the lamps are
technically identical - even down to the noisy ballasts.
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp - General overview of lamp
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp - Detail of lamp cap
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp illuminating my workstation from a distance of approximately two metres
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp - Overview of lamp shown while lit
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp - Overview of lamp packaging
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp shown held in hand for scale
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp - Showing length of lamp
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp Output Spectra
Pro-Lite Daylite Helix SCR-11W Blue Coloured Compact Fluorescent Lamp - Detail of text printed on lamp base
This lamp added to the Virtual Display Shelf on the 13th August 2009.
References: Lamp markings only.
Acknowledgements: Many thanks to the website reader who donated this lamp and many others for display!
This page was last updated on 16th June 2023: Made some changes to the page formatting to improve readability on mobile devices along with some background page code tweaks to improve search engine behaviour.
