Manufacturer: Connect-IT
Model: ES15730 30W low energy bulb
Application: General Lighting
Wattage: 30W (29W Measured)
Diameter (max): 60mm
Length: 720mm
Tube Length: 280mm approx (8mm diameter), 4-U style
Bulb/Tube material: Glass.  Colour 827 phosphor coating on inner surface
Colour Temperature: 2700K CRI: Ra 82
Peak output wavelength:  
Total light output: 1500Lm (50Lm/W) - Manufacturers claim.
Rated lifetime: 8'000 Hours
Cap: B22
Operating voltage: 230-240V AC 50-60Hz
Operating current: 240mA (pf = 0.51)
Warmup/restrike time: 1 minute/none (Instant Start type ballast)
Cost (original): 2.99 (May 2006) from "Nickel 'n' Dime" discount store in Aberdeen Market.
Value (now): Unknown
Place of manufacture: Unknown, not stated on lamp or packaging.
Date of manufacture: Unknown, no date code on lamp or packaging.
Lamp Status: Working
Notes: These days, cheap CFLs are getting progressively easier to find, in the common wattages anyway (eg 11W - 20W).  However, it seems that the higher wattages have eluded this market for the most part - not really surprising when you take into account what a small portion of the overall market they make up. 

However, there are some out there if you dig around, this 30W example I discovered totally at random in a discount store when I was looking for, of all things, a box of paperclips!

Technically speaking, there isn't anything particularly special about this lamp, it's a very ordinary compact fluorescent lamp, featuring an instant start electronic ballast, and colour 827 phosphor.

The 8000 hour quoted lifetime sounds somewhat on the long side for a budget lamp, but this lamp does seem to run quite cool - a good thing, as what generally kills CFLs prematurely is overheating of ballast components.  Regular switching of course would not help - but generally the problem with cheaper lamps is that the tube itself will last longer than the ballast.  A far cry from the first magnetically ballasted lamps where the ballast would last effectively indefinitely, hence the evolution of lamps with a separate ballast/tube assembly. 

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This lamp added to the Virtual Display Shelf on the 6th May 2006 at 02:29.


References: None.


Acknowledgements: None.


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