DOE Releases 10-Year US Lighting Market Change Report

Recently, the U.S. Department of Energy released a report that described changes in the US lighting market over the past decade. The report pointed out that in the past decade, the average energy efficiency of lamps increased by 29%, and the use of lamps increased by 14%.

The US Department of Energy (DOE) pointed out in this latest detailed report that in the past ten years, the domestic installed luminaires in the United States have been heading towards a higher efficiency growth. The average system efficiency has increased from 45 lm/W in 2001 to 2010. 58 lumens/watt.

Ten Years Improvement in Average Fluorescent Efficiency

The average system efficiency of fluorescent lamps increased by 29% over a decade, mainly due to the replacement of incandescent bulbs with compact fluorescent lamps (energy saving lamps) for residential applications, and the replacement of T12 fluorescent lamps with T8 and T5 fluorescent lamps in commercial and industrial applications.

As can be seen from the figure above, the average system efficacy for residential lighting (19 lm/W) is significantly lower than that for the other three sectors (equal to or higher than 70 lm/W), and the industrial and outdoor average system efficacy is attributed to improvement. Metal halide lamps have replaced mercury lamps.

At the same time, the new construction project in the United States has also increased the total number of luminaire installations by 14%, and the total number of luminaire installations has increased from 7 billion in 2001 to 8 billion in 2010. The growth is mainly concentrated in the residential sector, which not only reflects the number of houses. The increase also shows that the continuous expansion of the residential area requires more lamps.

Commercial and residential lighting accounts for 75% of the total market

In 2010, the American lighting market characterization report pointed out that lighting consumption is 700 TWh, accounting for about 19% of the total electricity consumption in the United States, of which, commercial lighting consumption accounts for nearly half of the total consumption (349 TWh). This is largely due to the fact that fluorescent lighting dominates.

Although the lighting used in residential lighting is more, the power consumption is only 175 TWh because of the use of incandescent lamps and their daily use less than commercial lighting.

It is worth noting that the power consumption of LED luminaires is almost useless on the total power consumption figure.

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Bare Fiber PLC Splitters
Blockless Fiber Optical PLC Splitter
ABS box Fiber Optic PLC Splitter
LGX Box Optical PLC Splitters
Cassette Box PLC Splitter
Pallet Type Optical Fiber PLC Splitter
Rack Mount PLC Splitter for PON application
Wall Mount PLC Splitters


Rack type: installed in 19 inch OLT cabinet; in fiber branch home, the installation equipment is standard digital cabinet; when ODN need to be placed on the table.
Cassette type: installed in 19 inch standard rack; in fiber branch home, installation device is provided in the optical fiber cable transfer box; branch home, installed customer specified equipment.
Branch type: installed in various types of optical distribution equipment. Installed in various types of optical testing instruments.
Miniature: installed in optical cable connector box. Installed in the module box. Installed in the wiring box.
Insert: This equipment is used for user access point for optical FTTX system, mainly to complete the cable into the area or building into the end, with a fixed, stripping, welding, and other functions of the shunt jumper, optical fiber, light to form a cable into the terminal user.
Tray type: Fiber Optic Splitter, applicable to various types of wave division multiplexer integrated installation.


Planar lightwave circuit splitter (PLC Splitter) is a kind of integrated waveguide optical power distribution device based on quartz substrate. It has the advantages of small volume, wide bandwidth, high reliability, excellent uniformity. Optical Fiber Splitter is especially suitable for passive optical networks (EPON, BPON, GPON) which is connected with the terminal equipment and realize the optical power distribution.
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