|Elliott Sound Products||Lamps & Energy|
The topic of lamps is now a major area for technology, and I continue to do measurements and tests on alternatives. The page discussing CFLs has been pretty popular, and became so large that it's been split into different sections. Because of the latest advances in LED lamps, they are also covered in their own sections in the pages that follow.
It is becoming very clear that the CFL is not only an interim product, but has many flaws that will severely limit its usefulness in the long term. Essentially, CFLs have to compete with LED lamps that have much greater life, are now far more efficient, but don't have as many problems. Recycling is simplified (no mercury), and the ability to operate at very low temperatures with instant full brightness and zero ultra-violet radiation will make LEDs the lamp of choice for many applications where CFLs are simply unsuitable.
The humble incandescent lamp still has its uses though, and hopefully governments the world over will realise that it is impractical (and just plain stupid) to place an arbitrary ban on them just because they are less efficient than other forms of lighting. In quite a few applications, there are exactly zero alternatives to incandescent lamps, and the sooner this is recognised the better. It's notable that many of the deadlines set have been and gone, yet there is still a good supply of incandescent lamps in most parts of the world.
In addition, there are minimum energy performance standards being imposed that are of sometimes dubious benefit, and in Australia it was even proposed (by bureaucrats) that some changes required that the laws of physics be rewritten to accommodate their goals. This is not helpful.
|Lamps and Lighting||Update|
|Incandescent Lamps||The worldwide 'incandescent lamp ban' debate - get some facts before you act!||Jan 13||Compact Fluorescent Lamps||CFLs may not be to everyone's liking, but if used properly they are still a good option||Jan 13|
|Fluorescent Lamps||Traditional fluorescent tube lamps and their alternatives.||Jan 12|
|Fluorescent Lamps - Part 2||How Fluorescent Lamps Work||Jul 07|
|LED Lighting||A look at some of the latest applications for LED lighting products.||Sep 08|
|LED Lighting - Thermal Management||Examination of this most critical area of LED lighting.||Sep 13|
|ESL Lighting||Electron Stimulated Luminescence Lamps - an overview||Mar 12|
|Sulphur Plasma Lamps||A look at sulphur plasma lamps - the next big thing or continued failure?||Apr 10|
|Dimmers (Part I)||Dimmer technology, past, present and future.||Dec 13|
|Dimmers (Part II)||The focus is on 3-wire dimmers, why they are better and why 2-wire dimmers should be phased out now.||May 15|
|Dimmers & LEDs||Dimming LEDs continues to cause grief. Find out why. (See Dimmers Part II for more information) 0-10V Dimming||Mar 17|
|Induction Lamps||Induction lighting becomes mainstream. A look at the technology used.||Dec 11|
|Lumens, Lux & Candelas||An overview of the three ways that describe how much light is provided by a given light source.||Dec 13|
|Solid State Lighting & Temperature||LED and CFL light sources are temperature sensitive because of the electronic power supplies. High and low temperatures can cause problems.||Jan 14|
|Power Supplies & Power Measurements||Update|
|Electronic Transformers||How they work (in detail) and a warning to watch out for some that are very dangerous||Jun 10|
|External PSUs||Hot on the heels of the CFL fiasco, now the legislators have banned external transformer supplies||May 14|
|Inrush Current||What it is, what it can do, and how to prevent it from causing problems||Oct 10|
|Power Factor - Reality||A simplified explanation of power factor (PF) so that the basic concepts are understood before delving deeper.||Dec 12|
|Power Factor Correction||An explanation of how active power factor correction (PFC) circuits work||Jan 12|
|Power Calculations||How to determine power, VA, RMS voltage and current - Analogue or digital||Jan 17|
|Reactance||A close look at the effects of capacitance, inductance and non-linear loads on the power grid||Feb 12|
|Power Saver Scam||The fraudsters are still at it - 'power savers' may not be in the news, but they refuse to go away.||Jan 12|
|Power Saver Tests||So, I ran tests on one of the fraudsters so-called 'products'. No surprises, it doesn't work!||Sep 13|
|Wind Turbine Introduction||An introductory look at the economics and social problems of wind turbines||28 Apr 10|
|Wind Turbine Noise||Wind turbines may not be the gentle giants they seem. The introduction to NZ research.||28 Apr 10|
|Main Index||Return to main index page|
|Articles Index||Articles index page|
|Contact||Send e-mail to ESP|
|This book is just what's needed for those who are interested in knowing more about lighting in general and the often complex relationship between Lumens, Watts
and Lux. Karen Wardell has done a vast amount of research, and this book is the end result. It used to be available from her website, but that's now shut down. Try your
local library. A quote from the back cover ...
There are two sides to lighting design - a hard side and a soft side.Karen's book is available in some libraries, but unfortunately her website no longer exists.