LEDs - Gallium Indium Nitride UV, violet, purple, blue, aqua, turquoise, green, white. Also Gallium Arsenide and others. New LED MUSEUM! GaN, InGaN, SiC, GaAs, GaP, GaAlP, ZnSe, flashlight, flashlights.

SPECTRA OF LOW-POWERED YELLOW-GREEN LEDS (2)
HIGH-POWERED WHITE LEDS (Pg. 1)
HIGH-POWERED WHITE LEDS (Pg. 2)
HIGH-POWERED WHITE LEDS (Pg. 3)
HIGH-POWERED COLORED LEDS
HIGH-POWERED ULTRAVIOLET LEDS
LOW-POWERED WHITE LEDS (Pg. 1)
LOW-POWERED WHITE LEDS (Pg. 2)
LOW-POWERED WHITE LEDS (Pg. 3)
LOW-POWERED WHITE LEDS (Pg. 4)
LOW-POWERED WHITE LEDS (Pg. 5)
LOW-POWERED COLORED LEDS (Pg. 1)
LOW-POWERED COLORED LEDS (Pg. 2)
LOW-POWERED COLORED LEDS (Pg. 3)
SPECIALTY COLORED LEDS
LOW-POWERED WARM WHITE LEDS
LOW-POWERED NIR LEDS
LOW-POWERED RED LEDS
LOW-POWERED RED LEDS (2)
LOW-POWERED ORANGE LEDS
LOW-POWERED ORANGE LEDS (2)
LOW-POWERED YELLOW LEDS
LOW-POWERED YELLOW LEDS (2)
LOW-POWERED YELLOW-GREEN LEDS
LOW-POWERED YELLOW-GREEN LEDS (2)
LOW-POWERED GREEN LEDS
LOW-POWERED GREEN LEDS (2)
LOW-POWERED BLUE-GREEN LEDS
LOW-POWERED BLUE-GREEN LEDS (2)
LOW-POWERED BLUE LEDS
LOW-POWERED BLUE LEDS (2)
LOW-POWERED VIOLET/NUV LEDS
LOW-POWERED VIOLET/NUV LEDS (2)
LOW-POWERED UVA LEDS
LOW-POWERED UVA LEDS (2)
BICOLOR & TRICOLOR LEDS
MULTIPLE-COLORED LED PRODUCTS
INCANDESCENT FLASHLIGHTS
OTHER LIGHT SOURCES
FLUORESCENT LIGHT BULBS
LASERS (Pg. 1)
LASERS (Pg. 2)

This web page will be for nothing but spectra of 10mm, 8mm, 5mm, 3mm, and SMD LEDS (driven at 20mA to 60mA):

Ocean Optics USB2000 Spectrometer donated by P.L.
As of 10-10-07, I've been using a PC2000-ISA Spectrometer from Ocean Optics that I received several years ago, but that I didn't have a home for until now.
As of 03-08-08, I once again have the USB2000 spectrometer, enabling color spectra again.

YELLOW-GREEN LEDs

Spectrographic analysis of a diffused yellow-green LED with stubby
body & gold colored wire leads; probably from the late-1970s.

Spectrographic analysis of a diffused yellow-green LED in a smaller-than-T1 package; probably from the 1980s.

Spectrographic analysis of a diffused yellow-green LED in a 5mm package; probably from the 1980s.

Spectrographic analysis of a Radio Shack (Archer) # 276-045 diffused yellow-green LED from the 1980s.

Spectrographic analysis of a two-chip yellow-green LED from the 1980s.

Spectrographic analysis of a Hebei Shanghai Co. # L5T34VG3C-D2-AH yellow-green LED.

Spectrographic analysis of one of the yellow-green LEDs in the Star Trek: The Next Generation Medical Scanner Stage Prop.

Spectrographic analysis of the starboard (right) wingtip LED in the Cessna 182 R/C Airplane.

Spectrographic analysis of the yellow-green LEDs in a bicycle safety flasher (with a BLUE lens).

Spectrographic analysis of a diffused yellow-green LED from the 1970s.

Spectrographic analysis of a rectangular yellow-green LED; circa. ~2000.

Spectrographic analysis of a 5mm yellow-green LED, circa. ~2003.

Spectrographic analysis of a rectangular yellow-green LED, circa. ~2000.

Do you manufacture or sell an LED flashlight, task light, utility light, or module of some kind? Want to see it tested by a real person, under real working conditions? Do you then want to see how your light did? If you have a sample available for this type of real-world, real-time testing, please contact me at ledmuseum@worldnet.att.net or send your potential victim to:

Craig Johnson
c/o The LED Museum
490 Forastera Circle
Sacramento CA. 95834-2709
ph. Please e-mail for phone number (costs me $0.50 a minute, use only if urgent)

Unsolicited flashlights, LEDs, and other products appearing in the mail are welcome, and it will automatically be assumed that you sent it in order to have it tested and evaluated for this site.
Be sure to include contact info or your company website's URL so visitors here will know where to purchase your product.

WHITE 5500-6500K InGaN+phosphor 
ULTRAVIOLET 370-390nm GaN 
BLUE 430nm GaN+SiC
BLUE 450 and 473nm InGaN
BLUE Silicon Carbide
TURQUOISE 495-505nm InGaN
GREEN 525nm InGaN 
YELLOW-GREEN 555-575mn GaAsP & related
YELLOW 585-595nm
AMBER 595-605nm
ORANGE 605-620nm
ORANGISH-RED 620-635nm
RED 640-700nm
INFRARED 700-1300nm
True RGB Full Color LED
Spider (Pirrahna) LEDs
SMD LEDs
True violet (400-418nm) LEDs
Agilent Barracuda & Prometheus LEDs
Oddball & Miscellaneous LEDs
Programmable RGB LED modules / fixtures
Where to buy these LEDs 
Links to other LED-related websites
The World's First Virtual LED Museum
The Punishment Zone - Where Flashlights Go to Die
Legal horse puckey, etc.
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