SPECTROGRAPHIC (NORMAL & NARROWBAND) AND POWER OUTPUT ANALYSES OF LEDs THAT KLAATU SENT IN LATE-MARCH 2013 (2)




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.
As of 09-19-09, I no longer have the PC2000-ISA; it was sold to prevent an eviction.

SPECTRA (NORMAL & NARROWBAND) OF LEDs THAT KLAATU SENT IN LATE-MARCH 2013 (2):

All spectra were performed with an If (forward current) of 330mA.



This is the high-powered (1 watt) 655nm red LED from an unknown OEM.

key                             AAA
purchase date                   2013-01-17
shipping time days              14
color                           deep red
listing                         10pcs 3W Red High Power LED Lamp Beads 40~50 Lm 655-660 nm DIY 
item code                       290826686699
source                          ebay
vendor                          happyeasybuy04 
url                             http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290826686699
price each                      69
price lot                      $6.89
lot size                        10
lower wavelength                655
upper wavelength                660
wattage                         3
current mA                      700
lower voltage                   2.4
upper voltage                   2.6
lower lumen                     40
upper lumen                     50
beam angle degrees              140
lifespan hours                 >100,000



Beam terminus photograph of a high-powered red LED (655nm) from an unknown OEM.
That pinkish color is because my camera doesn't "do" pure or nearly pure red very well.


Spectrographic plot
Spectrographic analysis of a high-powered red LED (655nm) from an unknown OEM.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered red LED (655nm) from an unknown OEM; spectrometer's response narrowed to a band between 720nm and 740 to pinpoint peak wavelength, which is 656.677nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.




This is the high-powered (3 watt) phosphor warm white LED from an unknown OEM.


Beam terminus photograph of a high-powered phosphor warm white from an unknown OEM.


key                     AAB
purchase date           2013-01-17
shipping time days      14
color                   warm white
listing                 10pcs 3W White High Power LED Lamp Beads 180~240 Lm DIY Cool White Warm White
item code               300829408509
source                  ebay
vendor                  happyeasybuy04 
contact	
url                     http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300829408509&var=600072012630

note                    leads are reversed, anode has minus sign.  Leads are also bent up at ends,
                        cannot reflow solder without straightening first.  Vendor refunded $5
price each              56
price lot               $5.59
lot size                10
wattage                 3
current mA              700
lower voltage           3.4
upper voltage           3.8
lower lumen             180
upper lumen             240
beam angle degrees      140
lifespan hours         >100,000


Spectrographic plot
Spectrographic analysis of a high-powered phosphor warm white from an unknown OEM.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered phosphor warm white from an unknown OEM; spectrometer's response narrowed to a band between 430nm and 440 to pinpoint native emission peak wavelength, which is 452.590nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered phosphor warm white from an unknown OEM; spectrometer's response narrowed to a band between 580nm and 600 to pinpoint phosphor peak wavelength, which is 598.290nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.





This is the high-powered (3 watt) 450-455nm royal blue LED from an unknown OEM.

key                     AAC
purchase date           2013-01-17
shipping time days      8
color                   royal blue
listing                 12pcs 3W Royal Blue HIGH POWER LED lamp lights 450nm 455nm for Aquarium CN 12x
item code               281031472435
source                  ebay
vendor                  luoxiquan
url                     http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=281031472435
price each              96
price lot               $11.50
lot size                12
lower wavelength        450nm
upper wavelength        455nm
wattage                 3
current mA              700
lower voltage           3.4
upper voltage           3.6
lower lumen             30
upper lumen             45	
beam angle degrees      140



Beam terminus photograph of a high-powered (3 watt) 450-455nm royal blue LED from an unknown OEM.
That pinkish color is because my camera doesn't "do" pure or nearly pure blue {spectrally pure anyway} very well.


Spectrographic plot
Spectrographic analysis of a high-powered (3 watt) 450-455nm royal blue LED) from an unknown OEM.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered (3 watt) 450-455nm royal blue LED from an unknown OEM; spectrometer's response narrowed to a band between 442nm and 453nm to pinpoint peak wavelength, which is 447.650nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.





This is the high-powered (3 watt) 730nm NIR LED from Shenzhen Lux Lighting Co., Ltd.

key                     AAU
purchase date           2013-03-01
shipping time days      17
color                   far red
listing                 5pcs 3W IR LED 730nm-740nm 2 Chips 3W IR high power LED Beads 700mA free shipping 
source                  aliexpress
vendor                  Shenzhen Lux Lighting Co., Ltd.
contact                 Alice Xie
url                     http://www.aliexpress.com/snapshot/219134841.html
story                   epistar, CT 6000-6500K, 6500-7000K
note                    bead has dual chips in parallel; leads reversed
price each              $6.60
price lot               $33.00
lot size                5
lower wavelength        730
upper wavelength        740
wattage                 3
current mA              700
lower voltage           1.2
upper voltage           1.7
beam angle degrees      90



Beam terminus photograph of a high-powered (3 watt) 450-455nm 730nm NIR LED from Shenzhen Lux Lighting Co., Ltd.
That pinkish color is because my camera doesn't "do" pure or nearly pure deep red {spectrally pure anyway} very well.


Spectrographic plot
Spectrographic analysis of a high-powered (3 watt) 730nm NIR LED) from Shenzhen Lux Lighting Co., Ltd.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered (3 watt) 730nm NIR LED from Shenzhen Lux Lighting Co., Ltd; spectrometer's response narrowed to a band between 730nm and 740nm to pinpoint peak wavelength, which is 736.999nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.





key                     AAS
purchase date           2013-03-03
shipping time days      15
color                   green
listing                 free shipping 50pcs 1W Green High-power Beads LED 60-70Lm 50pcs 1watt light lamp 
source                  aliexpress
vendor                  Star-Yang's store
url                     http://www.aliexpress.com/snapshot/219464499.html
story                   great chip 
price each              37
price lot               $18.50
lot size                50
lower wavelength        520
upper wavelength        530
wattage                 1
current mA              350
lower voltage           3.3
upper voltage           3.5
lower lumen             60
upper lumen             70



Beam terminus photograph of a high-powered green LED (520nm) from an unknown OEM.



Spectrographic plot
Spectrographic analysis of a high-powered green LED (520nm) from an unknown OEM.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered green LED (520nm) from an unknown OEM; spectrometer's response narrowed to a band between 510nm and 530 to pinpoint peak wavelength, which is 520.290nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.








key                     AAM
purchase date           2013-03-01
shipping time days      8
color                   blue-violet
listing                 3W Ultra Violet UV 420nm-425nm LED Emitter 6-8lm Aquariums/Plants
item code               221006201243
source                  ebay
vendor                  led-dna
url                     http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=221006201243
price each              $4.00
price/lot               $4.00
lot size                1
lower wavelength        420
upper wavelength        425
wattage                 3
current mA              700
lower voltage           3.6
upper voltage           3.8
lower lumen             6
upper lumen             8	
beam angle degrees      120



Beam terminus photograph of a high-powered blue-violet LED (420nm) from an unknown OEM.
That pinkish color is because my camera doesn't "do" pure or nearly pure violet (or any other pure or nearly-pure spectral color for that matter!) very well.


Spectrographic plot
Spectrographic analysis of a high-powered blue-violet LED (420nm) from an unknown OEM.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.


Spectrographic plot
Spectrographic analysis of a high-powered blue-violet LED (420nm) from an unknown OEM; spectrometer's response narrowed to a band between 405nm and 415 to pinpoint peak wavelength, which is 411.080nm.


Spectrographic plot
Same as above; white background was used as Klaatu prefers it for printing purposes.













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