Lighting Research Center Lighting Research Center
    Volume 10 Issue 1
May 2010     
LED Lighting Products for Consumers
A-lamp - The incandescent lamp most commonly used in North American households. The "A" designation refers to the lamp's bulbous shape. line voltage - The voltage supplied by the electric power infrastructure, typically 110-120 Vac at 60 Hz for homes in North America. color rendering index (CRI) - A rating index commonly used to represent how well a light source renders the colors of objects that it illuminates. For a CRI value of 100, the maximum value, the colors of objects can be expected to be seen as they would appear under an incandescent or daylight spectrum of the same correlated color temperature (CCT). Sources with CRI values less than 50 are generally regarded as rendering colors poorly, that is, colors may appear unnatural. lamp rated life - The number of operating hours at which half of a large group of product samples are expected to fail. The rated life is a median value of life expectancy; individual lamp life may vary considerably from the published rated life and operating conditions (e.g., temperature, hours per start) may affect actual life because rated life is based on standard test conditions. In addition, the way a product fails can vary by technology. For example, incandescent lamps abruptly stop producing any light while LEDs are considered to have failed when their light output drops below a certain fraction of the initial level. luminaire - A complete lighting unit consisting of a lamp or lamps and the parts designed to distribute the light, to position and protect the lamp(s), and to connect the lamp(s) to the power supply. (Also referred to as fixture.) correlated color temperature (CCT) - A specification for white light sources used to describe the dominant color tone along the dimension from warm (yellows and reds) to cool (blue). Lamps with a CCT rating below 3200 K are usually considered warm sources, whereas those with a CCT above 4000 K usually considered cool in appearance. Temperatures in between are considered neutral in appearance. Technically, CCT extends the practice of using temperature, in kelvins (K), for specifying the spectrum of light sources other than blackbody radiators. Incandescent lamps and daylight closely approximate the spectra of black body radiators at different temperatures and can be designated by the corresponding temperature of a blackbody radiator. The spectra of fluorescent and LED sources, however, differ substantially from black body radiators yet they can have a color appearance similar to a blackbody radiator of a particular temperature as given by CCT. power - The power used by a device to produce useful work (also called input power or active power). In lighting, it is the system input power for a lamp and ballast or driver combination. Power is typically reported in the SI units of watts. luminous flux - Luminous radiant power, measured in lumens. The overall light output of a lamp or luminaire. light-emitting diode (LED) - A solid-state electronic device formed by a junction of P- and N-type semiconductor material that emits light when electric current passes through it. LED commonly refers to either the semiconductor by itself, i.e. the chip, or the entire lamp package including the chip, electrical leads, optics and encasement. color rendering index (CRI) - A rating index commonly used to represent how well a light source renders the colors of objects that it illuminates. For a CRI value of 100, the maximum value, the colors of objects can be expected to be seen as they would appear under an incandescent or daylight spectrum of the same correlated color temperature (CCT). Sources with CRI values less than 50 are generally regarded as rendering colors poorly, that is, colors may appear unnatural. There are two ways to produce white light using LEDs. The first is to use a combination of red, green, and blue LEDs which produce white light in an additive process. The second method, developed in the late 1990s, covers a blue or ultraviolet LED with a phosphor which reemits the light in a broad, white-light spectrum. These phosphor-based white LEDs are used in most consumer products available today.
What LED products for general illumination are available?

What LED products for illuminating an indoor area or surface are available in retail stores? To answer this question, National Lighting Product Information Program (NLPIP) staff visited a variety of stores in the Albany, New York, area where people would typically buy lamps (commonly referred to as light bulbs) and luminaires for their homes. These stores are shown in Table 1. NLPIP did not survey any lighting showrooms or electrical distributors, nor did NLPIP examine products available on the Internet.

Table 1. Stores surveyed in the Albany, NY area
Category Stores visited
Discount retailers Target, Kmart, Wal-Mart
Wholesale clubs Sam's Club, BJ's Wholesale Club (BJ's)
Supermarkets Hannaford, Price Chopper
Drug stores Rite Aid, Walgreens
Home improvement stores The Home Depot, Lowe's
Hardware stores Shaker Ace Hardware, Pfiel Hardware (Do it Best), Phillips Hardware (Do it Best), True Value Hardware

NLPIP researchers looked for products that met these criteria:

  • For indoor illumination
  • Connect to line voltage
  • Provide white light
  • For residential applications

These criteria excluded decorative, outdoor, and battery- or solar-powered lights. For example, LED battery-powered puck lights, rope lights intended for decorative trim, task lights powered exclusively by rechargeable batteries, and PV-powered path lights were excluded from the survey.

Two surveys were conducted at stores in the Albany, New York, region. The first was conducted from May 23 through June 4, 2009, and the second was conducted from September 25 through 29, 2009. Products were found in six categories: track lights, power failure lights, task lights, replacement lamps, night-lights, and under-cabinet luminaires. The products found are listed by category below, in alphabetical order based on brand. The accuracy of the information found under "Manufacturer’s data on package" was not verified by NLPIP.

Power failure lights. These units charge a battery when grid electricity is available and then turn on during a power outage. These lights often combine power failure light, flashlight, and night-light functions.

Table 2. LED power failure lights found during store survey.*
Brand Model Store(s) Price (US$) Manufacturer's data on package
Luminous flux (lumens) Power per light (W) Life (hours)
Eco-Lite 0580 Sam's Club 2 for 24.88 NS NS NS
GE 11096 Price Chopper 14.99 NS 0.9 NS
Rite Aid 18.39
OSRAM SYLVANIA E11903 Lowe's 9.98 NS 1 NS
OSRAM SYLVANIA E12044 Hannaford (Niskayuna) 10.53 NS 0.8 NS
Hannaford (Clifton Park) 10.17
Lowe's 10.43 or 3 for 24.98
BJ's 3 for 19.99
OSRAM SYLVANIA E12168 Lowe's 9.48 NS 0.8 NS
* "NS" indicates information not supplied on package.

Task lights. These luminaires illuminate a specific task, such as a work area on a desk. Examples include desk and clip-on lamps.

Table 3. Task light LED products found during store survey.*
Brand Model Store Price (US$) Manufacturer's data on package Notes
Luminous flux (lumens) Power per light (W) Life (hours)
Amerelle 73174 The Home Depot 9.97 NS 0.5 NS Two electrical outlets built into luminaire
Craftsman 34-73903 Kmart 27.99 NS NS NS Work light
Craftsman 34-73904 Kmart 33.99 NS NS NS Work light
Hampton Bay 847-284 The Home Depot 39.97 NS 1 NS Clip-on desk lamp
Hampton Bay 847-735 The Home Depot 39.97 NS 1 NS Desk lamp
Life Gear LGL3WLHD The Home Depot 19.98 40 NS NS Four sources of power: AC, DC, battery, wind-up
Portfolio 12797 Lowe's 29.98 NS 3.4 100,000 Goose neck desk lamp
Prolite Electronix LE30-15 True Value Hardware 26.99 NS 2.5 up to 100,000 Work light with hook
Target Home 074 14 0217 Target 24.99 NS NS 30,000 Clip-on lamp
Target Home 074 14 0218 Target 29.99 NS NS 30,000 Desk lamp
* "NS" indicates information not supplied on package.

Replacement lamps. NLPIP found LED lamps (commonly referred to as light bulbs) that are intended to replace many types of lamps.

Table 4. Replacement lamp LED products.*
Brand Type Model Store Price (US$) Manufacturer's data on package Notes
Luminous flux (lumens) Power per lamp (W) Life (hours)
Feit Electric Candelabra BCP7/LED Walgreens 2 for 3.99 NS 1 50,000 Accent LED
The Home Depot 2 for 4.97
GE MR16-type reflector 73153 Wal-Mart 14.88 35 1 12,000 GU10 base
GE MR16-type reflector 75625 Wal-Mart 24.66 100 4 15,000 Narrow flood, 3035K CCT
GE PAR16-type reflector 75626 Wal-Mart 24.66 100 4 15,000 Narrow flood, 3035K CCT
GE PAR20-type reflector 73716 Wal-Mart 34.88 200 7 20,000 Narrow flood
GE PAR20-type reflector 4753689 Sam's Club 25.76 200 7 20,000 Narrow flood
GE PAR30-type reflector 75349 Wal-Mart 40.96 320 10 20,000 Long neck, 24° flood, 3000K CCT
GE PAR30-type reflector 75393 Wal-Mart 40.96 320 10 20,000 Short neck, 24° flood, 3000K CCT
Good Choice Candelabra 147-02 Kmart 5.19 NS 2 30,000 Two LED lamps, works with night-light that uses C7 lamp
Lights of America Bulb shaped 2026LED-30K Shaker Ace Hardware 9.99 75 1.5 30,000 3000K CCT
Lights of America Bulb shaped 2026LED-65K Shaker Ace Hardware 9.99 84 1.5 30,000 6500K CCT
Lights of America Bulb shaped 2026LEDE12-65K Pfeil Hardware 11.99 NS 1.5 30,000 6500K CCT
Lights of America Candelabra 2025LED-30K Shaker Ace Hardware 9.99 NS 1.5 30,000 3000K CCT
Sam's Club 3 for 14.86
Lights of America Candelabra 2025LEDE12-55K Shaker Ace Hardware 9.99 NS 1.5 30,000 5500K CCT
Lights of America Candelabra 2025LEDE12-65K Pfeil Hardware 11.99 NS 1.5 30,000 6500K CCT
Lights of America MR16-type reflector 2001LEDG10-65K-24 Shaker Ace Hardware 9.99 31 1 30,000 6500K CCT
Lights of America PAR20-type reflector 2004LEDDL-35K Pfeil Hardware 13.79 201 3.5 30,000  
Sam's Club 2 for 14.96
Lights of America PAR30-type reflector 2002LEDP30-65K Pfeil Hardware 24.49 NS 3.5 30,000  
Lights of America PAR38-type reflector 2003LEDP38-65K Pfeil Hardware 24.49 NS 5 30,000  
Meridian Candelabra 13100 Wal-Mart 2 for 2.88 NS 1.7 NS 120 vac replacement lamp
OSRAM SYLVANIA Candelabra X16867 Lowe's 2 for 4.98 8 1 15,000 7500K CCT
OSRAM SYLVANIA PAR16-type reflector X16454 Hannaford 14.99 40 2 25,000 2700K CCT
Lowe's 14.98
OSRAM SYLVANIA S14 X1843 Lowe's 7.98 60 2 15,000 S14 lamps are frequently used in signage
Philips Candelabra 818499 The Home Depot 15.97 30 2.5 15,000  
Philips Candelabra 818522 The Home Depot 19.97 30 2.5 15,000  
Philips MR16-type reflector 817902 The Home Depot 19.99 NS 4 35,000 3000K CCT, GU5.3 base, 12V
Philips MR16-type reflector 818528 The Home Depot 29.97 130 4 25,000 85 CRI, 3000K CCT, GU5.3 base, 12V
Philips MR16-type reflector 818529 The Home Depot 29.97 170 4 25,000 70 CRI, 4200K CCT, GU5.3 base, 12V
Philips MR16-type reflector 818530 The Home Depot 29.97 100 4 16,000 80 CRI, 3000K CCT, 490 cd
Philips PAR30-type reflector L818753 The Home Depot 49.97 418 11 25,000 85 CRI, 3000K CCT
Philips PAR38-type reflector 818752 The Home Depot 69.97 600 17 25,000 85 CRI, 3000K CCT
Philips R20-type reflector 818481 The Home Depot 29.97 155 7 40,000 3100K CCT
* "NS" indicates information not supplied on package.

Night-lights. Night-lights provide a small amount of illumination in an otherwise dark room or hallway. Sixty-eight LED products were identified. A table of these models is not provided here because all of the products used little energy to operate, so there is little need to differentiate them from an energy-savings perspective; of those that specified power, most models used energy at a rate less than 0.50 W and none at a rate more than 0.75 W.  Most had the form of traditional night-lights that attach to a wall-plug receptacle, with prices ranging from $2.88 to $14.99.

One product was a digital clock with white night-light LED illumination.

Under-cabinet and under-shelf luminaires. Under-cabinet and under-shelf luminaires are mounted to the underside of upper cabinets in order to provide counter-top illumination or are mounted under bookshelves and in display cases. These luminaires have either linear or puck forms, as illustrated in Figure 1.

Figure 1. Undercabinet luminaires.

A linear luminaire is at the top and a puck luminaire is at the bottom.


Table 5. LED under-cabinet luminaires available in the Albany, New York area during September 2009.*
Type Brand Model Store Price (US$) Manufacturer's data on package Notes
Luminous flux (lumens) Power (W) Life
Puck Hampton Bay 403-144 The Home Depot 44.96 NS 2 per puck NS 3 pucks, dimming
Hampton Bay 403-146 The Home Depot 44.96 NS NS NS 3 pucks
Hampton Bay 830-753 The Home Depot 33.97 NS 0.68 per puck NS  
Hampton Bay 830-758 The Home Depot 33.97 NS 0.23 per puck NS 10 mini-pucks
Hampton Bay 834-355 The Home Depot 44.96 NS 0.8 per puck NS 3 pucks
Hampton Bay 957-245 The Home Depot 14.96 NS 2.6 per puck NS 1 puck
Hampton Bay 947-254 The Home Depot 14.96 NS 2.6 per puck 20 years 1 puck
Hampton Bay 980-984 The Home Depot 34.78 NS 2.6 per puck 50,000 hours 3 pucks, triple pack of 957-254
Utilitech 283277 Lowe's 44.97 NS NS 50,000 hours Clearance price, 3 linked pucks
Utilitech 288741 Lowe's 8.79** or 18.68 NS 2.25 per puck 50,000 hours One 4" rectangle, **sale price at some locations
Linear GE 10408 The Home Depot 54.96 NS 5 NS Kitchen under-cabinet luminaire, 12" strip, linkable
GE 10409 The Home Depot 64.98 NS 6 NS Kitchen under-cabinet luminaire, 18" strip, linkable
GE 10421 Kmart 22.99 NS NS NS Kitchen under-cabinet luminaire, 10" strip
GE 10423 Kmart 29.99 NS NS NS Kitchen under-cabinet luminaire, 10" strip
GE 10432 The Home Depot 19.97 NS 1.5 NS Bookshelf luminaire, 12" add-on strip for GE model 10434
GE 10434 The Home Depot 39.97 NS 1.5 NS Bookshelf luminaire, 12" strip
Utilitech 283278 Lowe's 59.00 NS 5.5 50,000 hours Kitchen under-cabinet luminaire, 18" strip
Utilitech 283520 Lowe's 24.98 NS NS NS Kitchen under-cabinet luminaire, 18" strip, high/low/off setting, luminaire can swivel forward and back
* "NS" indicates information not supplied on package.

Please refer to Lighting Answers: LED Residential Under-cabinet Luminaires for more information.

Track lights. Track lights are typically ceiling-mounted and provide flexibility in aiming and positioning directional fixture heads to provide general and accent lighting.  NLPIP found one complete LED track light luminaire during this survey: the Hampton Bay 839-899 available at The Home Depot for $169. This luminaire has three track heads and a 44” track. The manufacturer’s data on the package indicates “up to 100,000 hours” of life.  Note that some of the replacement lamps listed in Table 4 are suitable for use in existing track light luminaires.

Summary. During the spring 2009 store survey, a total of 45 models of consumer LED, general-lighting products were found in the Albany, New York, area. During the fall 2009 store survey, this grew to 140 products, over three times as many, showing that LED products are a rapidly growing segment of the lighting market. (Four of the products available in the spring were no longer available in the fall, so there were 101 new products.) Figure 2 shows the number of models within each product category. Most of the increase was in the replacement lamp and night-light categories.

Figure 2. Number of models of consumer LED general lighting products found at retail stores in the Albany, New York region.

 

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