Yes this is what I have read on the lights.Its not that they consume a lot of power its that it takes a bit of power in order to have them operate correctly and a lamp with built in ballast has 15-50000hrs of life.I agree these lights work well.I think the measurment of light or k or how they do that was greater than the sun provides.But it is still in testing.The next gen street and housing light will be led.Dont get me wrong I would like to see these lights work and to be proved wrong who wouldnt want the sun indoor with huge tubes of light.
Future prospects
The development of an affordable, efficient, and long-lived microwave source is a technological hurdle to cost reduction and commercial success. The lamp prototypes were only available in high wattages (1000+ W), which impeded adoption in applications where light output demands were not great. The sulfur lamp has problems with the life of the magnetron and the motor that rotates the bulb and noise from the cooling fan. Because the lamp has moving parts, reliability remains a critical issue, and system maintenance may impede market adoption.[citation needed]
Researchers have had some success at eliminating the need to rotate the bulb by using circularly polarized microwaves to spin the plasma discharge instead.[15][16] Other experiments have used sodium iodide, scandium iodide, indium monobromide (InBr),[17][18] or tellurium[19] as the light-generating medium.
A patent #20070075617 is pending since 2006 for a sulfur lamp with electrodes — in fact, a more traditional gas–discharge lamp where a magnetron is not required. Various electrode coatings are suggested to combat high chemical activity of sulfur. As usual with patents, though, only commercial applications will reveal whether this design is viable
History
The technology was conceived by engineer Michael Ury, physicist Charles Wood and their colleagues in 1990. With support from the United States Department of Energy, it was further developed in 1994 by Fusion Lighting of Rockville, Maryland, a spinoff of the Fusion UV division of Fusion Systems Corporation. Its origins are in microwave discharge light sources used for ultraviolet curing in the semiconductor and printing industries. The Fusion UV division was later sold to Spectris plc, and the rest of Fusion Systems was later acquired by the Eaton Corporation.
Only two production models were developed, both with similar specifications: the Solar 1000 in 1994 and the Light Drive 1000 in 1997, which was a refinement of the previous model.
Production of these lamps ended in 1998.[8] Fusion Lighting closed its doors in early 2002, after having used up approximately $90 million in venture capital. Their patents were licensed to the LG Group. The Internet Archive has a copy of Fusion Lighting's defunct website. Their lamps were installed in more than one hundred facilities worldwide, but many of them have already been removed.
In 2001, Ningbo Youhe New Lighting Source Co., Ltd, in Ningbo, China, produced its own sulfur lamp version. The company's website is no longer online and may be out of business, but information on these lamps is available from its archived copy at the Internet Archive.
In 2006, LG Electronics began production of its sulfur lamps, called Plasma Lighting System
Many of the installations of the lamps were for testing purposes only, but there remain a few sites where the lamps are in use as the primary lighting source. Perhaps the most visible of these would be the glass atria in the National Air and Space Museum