<HTML>਀㰀䠀䔀䄀䐀㸀 
<TITLE>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.</TITLE>਀㰀匀吀夀䰀䔀 琀礀瀀攀㴀琀攀砀琀⼀挀猀猀㸀䈀伀䐀夀 笀匀䌀刀伀䰀䰀䈀䄀刀ⴀ䘀䄀䌀䔀ⴀ䌀伀䰀伀刀㨀 氀椀最栀琀戀氀甀攀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ䠀䤀䜀䠀䰀䤀䜀䠀吀ⴀ䌀伀䰀伀刀㨀 挀礀愀渀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ匀䠀䄀䐀伀圀ⴀ䌀伀䰀伀刀㨀 搀愀爀欀戀氀甀攀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ㌀䐀䰀䤀䜀䠀吀ⴀ䌀伀䰀伀刀㨀 氀椀最栀琀最爀愀礀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ䄀刀刀伀圀ⴀ䌀伀䰀伀刀㨀 戀氀愀挀欀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ吀刀䄀䌀䬀ⴀ䌀伀䰀伀刀㨀 戀氀愀挀欀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ䐀䄀刀䬀匀䠀䄀䐀伀圀ⴀ䌀伀䰀伀刀㨀 搀愀爀欀最爀攀礀㬀 匀䌀刀伀䰀䰀䈀䄀刀ⴀ䈀䄀匀䔀ⴀ䌀伀䰀伀刀㨀 氀椀最栀琀最爀攀礀紀 䀀洀攀搀椀愀 瀀爀椀渀琀 笀 䈀伀䐀夀 笀 戀愀挀欀最爀漀甀渀搀㨀 眀栀椀琀攀㬀 挀漀氀漀爀㨀 戀氀愀挀欀 紀紀 倀 笀 昀漀渀琀ⴀ昀愀洀椀氀礀㨀 琀椀洀攀猀Ⰰ 猀攀爀椀昀 紀 㰀⼀匀吀夀䰀䔀㸀 
<META NAME="keywords" CONTENT="LED, ultraviolet, UV, violet, purple, blue, turquoise, aqua, green, blue, amber, orange, red, IR, infrared, light emitting diode, Ga, As, Al, P, Zn, Se, Si, SiC, GaN, InGaN, In, gallium, arsenide, phosphide, indium, aluminum, nitride, zinc, selenide, light, lamp, emission, spectrum, spectra, museum, epitaxy, MOCVD, MOVPE, flashlight, flashlights.">਀㰀䴀䔀吀䄀 一䄀䴀䔀㴀∀搀攀猀挀爀椀瀀琀椀漀渀∀ 䌀伀一吀䔀一吀㴀∀䄀 猀椀琀攀 搀攀瘀漀琀攀搀 琀漀 琀攀猀琀椀渀最 漀昀 䰀䔀䐀猀 椀渀 愀氀氀 挀漀洀洀漀渀 挀栀攀洀椀猀琀爀椀攀猀⸀ 䤀渀挀氀甀搀攀猀 琀攀猀琀 琀愀爀最攀琀 椀氀氀甀洀椀渀愀琀椀漀渀 瀀栀漀琀漀猀 漀昀 洀愀渀礀 䰀䔀䐀 猀愀洀瀀氀攀猀Ⰰ 䰀䔀䐀 洀甀猀攀甀洀Ⰰ 愀渀搀 䰀䔀䐀 昀氀愀猀栀氀椀最栀琀 琀攀猀琀椀渀最⸀∀㸀 
</HEAD>਀㰀戀漀搀礀 戀最挀漀氀漀爀㴀∀⌀　　　　㄀　∀ 琀攀砀琀㴀∀⌀昀昀昀昀愀　∀ 氀椀渀欀㴀∀⌀　　昀昀昀昀∀ 愀氀椀渀欀㴀∀⌀愀　昀昀　　∀ 瘀氀椀渀欀㴀∀⌀　　愀　昀昀∀ 戀愀挀欀最爀漀甀渀搀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀戀氀愀渀欀㈀⸀最椀昀∀㸀 
</left><center><img src="http://www.ledmuseum.candlepower.us/pzone2.jpg" border=0><BR>਀㰀昀漀渀琀 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀 䈀氀愀挀欀∀ 挀漀氀漀爀㴀∀⌀昀㐀㘀㘀　㜀∀ 猀椀稀攀㴀∀㠀∀㸀䰀䔀䐀 䴀唀䰀吀䤀䌀伀䰀伀刀 䌀㜀 䰀䤀䜀䠀吀匀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀　　㈀　㈀　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㈀∀㸀㰀䈀刀㸀 
਀㰀昀漀渀琀 挀漀氀漀爀㴀∀昀昀　　　　∀㸀吀栀椀猀 椀猀 愀 氀漀渀最 瀀愀最攀 眀椀琀栀 愀琀 氀攀愀猀琀 ㈀㌀ 椀洀愀最攀猀 漀渀 椀琀㬀 搀椀愀氀ⴀ甀瀀 甀猀攀爀猀 瀀氀攀愀猀攀 愀氀氀漀眀 昀漀爀 瀀氀攀渀琀礀 漀昀 氀漀愀搀 琀椀洀攀⸀㰀戀爀㸀 
Somebody set up us the bomb. <img src="http://www.ledmuseum.candlepower.us/wink.gif"></font><font color="ffffa0">਀ 
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<hr><br>਀㰀挀攀渀琀攀爀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀戀㸀䰀䔀䐀 䴀甀氀琀椀挀漀氀漀爀 䌀㜀 䰀椀最栀琀猀Ⰰ 爀攀琀愀椀氀 ␀㜀⸀㄀㤀 ⠀㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀爀椀琀攀愀椀搀⸀挀漀洀∀ 琀愀爀最攀琀㴀∀渀攀眀∀㸀眀眀眀⸀爀椀最栀琀愀椀搀⸀挀漀洀㰀⼀䄀㸀⤀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀　　　　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀㰀戀㸀㰀戀椀最㸀⨀㰀⼀戀椀最㸀㰀⼀戀㸀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀 
<br>਀䴀愀渀甀昀愀挀琀甀爀攀搀 戀礀 ⠀唀渀欀渀漀眀渀⤀ 昀漀爀 刀椀最栀琀 䄀椀搀 ⠀㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀爀椀琀攀愀椀搀⸀挀漀洀∀ 琀愀爀最攀琀㴀∀渀攀眀∀㸀眀眀眀⸀爀椀最栀琀愀椀搀⸀挀漀洀㰀⼀䄀㸀⤀㰀戀爀㸀 
Last updated 12-07-13਀㰀⼀戀㸀㰀⼀昀漀渀琀㸀㰀戀爀㸀 
<br>਀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀㠀　㠀　㠀　∀㸀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ㄀⸀樀瀀最∀ 愀氀椀最渀㴀挀攀渀琀攀爀 栀猀瀀愀挀攀㴀㔀 䄀䰀吀㴀∀ ∀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀戀爀㸀㰀戀爀㸀㰀⼀挀攀渀琀攀爀㸀 
<font color="#ffffa0"><img src="http://www.ledmuseum.candlepower.us/what.gif"><font color="#ffffa0"><br>਀吀栀椀猀 椀猀 愀 猀攀琀 漀昀 ㈀㔀 洀甀氀琀椀挀漀氀漀爀攀搀 䰀䔀䐀 䌀栀爀椀猀琀洀愀猀 氀椀最栀琀猀 琀栀愀琀 愀爀攀 搀攀猀椀最渀攀搀 琀漀 戀攀 栀甀渀最 椀渀 礀漀甀爀 䌀栀爀椀猀琀洀愀猀 琀爀攀攀㬀 琀栀漀甀最栀 礀漀甀 挀愀渀 栀愀渀最 琀栀攀洀 樀甀猀琀 愀戀漀甀琀 愀渀礀眀栀攀爀攀 礀漀甀 洀椀最栀琀 栀愀渀最 琀爀愀搀椀琀椀漀渀愀氀 䌀栀爀椀猀琀洀愀猀 氀椀最栀琀猀⸀ 
<BR><BR>਀䔀愀挀栀 䰀䔀䐀 椀猀 猀甀爀爀漀甀渀搀攀搀 戀礀 愀 琀爀愀渀猀氀甀挀攀渀琀 瀀氀愀猀琀椀挀 搀椀昀昀甀猀攀爀 琀栀愀琀 栀愀猀 琀栀攀 猀愀洀攀 猀栀愀瀀攀 愀渀搀 猀椀稀攀 愀猀 愀 琀爀愀搀椀琀椀漀渀愀氀 䌀㜀봀 椀渀挀愀渀搀攀猀挀攀渀琀 䌀栀爀椀猀琀洀愀猀 戀甀氀戀 ⴀⴀ 戀甀琀 琀栀椀猀 攀渀琀椀爀攀 猀攀琀 甀猀攀猀 漀渀氀礀 ㈀⸀㄀㘀　 眀愀琀琀猀 漀昀 瀀漀眀攀爀℀℀℀ 
<br>਀㰀戀爀㸀 
These lights are dimmer than their incandescent counterparts, but I knew that full well when I made the purchase!਀㰀䈀刀㸀㰀䈀刀㸀㰀䈀刀㸀 
਀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀　　　　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀㰀戀㸀㰀戀椀最㸀⨀㰀⼀戀椀最㸀㰀⼀戀㸀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀 倀爀漀搀甀挀琀 眀愀猀 渀漀琀 昀漀甀渀搀 漀渀 琀栀攀 刀椀最栀琀 䄀椀搀 眀攀戀猀椀琀攀Ⰰ 猀漀 琀栀椀猀 唀刀䰀 猀椀洀瀀氀礀 氀攀愀搀猀 琀漀 琀栀攀椀爀 ✀昀爀漀渀琀 搀漀漀爀✀⸀ 
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<BR><BR><BR>਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ㈀⸀樀瀀最∀ 愀氀椀最渀㴀挀攀渀琀攀爀 栀猀瀀愀挀攀㴀㔀 䄀䰀吀㴀∀ ∀㸀 匀䤀娀䔀 
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<font color="#ffffa0"><img src="http://www.ledmuseum.candlepower.us/using.gif"><font color="#ffffa0"><br>਀吀漀 甀猀攀 琀栀椀猀 猀攀琀Ⰰ 樀甀猀琀 甀渀琀愀渀最氀攀 琀栀攀洀 氀椀欀攀 琀爀愀搀椀琀椀漀渀愀氀 䌀栀爀椀猀琀洀愀猀 氀椀最栀琀猀Ⰰ 愀渀搀 ⠀㰀椀㸀琀漀 戀漀爀爀漀眀 愀 瀀栀爀愀猀攀 昀爀漀洀 愀 瀀漀瀀甀氀愀爀 愀椀爀 搀攀漀搀漀爀愀渀琀 挀漀洀洀攀爀挀椀愀氀㰀⼀椀㸀⤀ 㰀戀㸀欀瀦氀甀最 椀琀 椀渀 瀀氀甀最 椀琀 椀渀欀㰦⼀戀㸀℀ 
<br>਀㰀戀爀㸀 
Decorate with them as you'd normally decorate with Christmas lights -- that is, encircle the Christmas tree with them, carefully staple them to your window or door frames, drape them across the mantle, or just string them across your dorm room ceiling for that special holiday feel all year 'round.਀ 
<BR><BR><BR>਀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀瀀甀渀椀猀栀⸀最椀昀∀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀戀爀㸀 
This light set is meant to be used as a decorative light set in a dry area, not as a flashlight meant to be carried around, thrashed, used, and abused; so I won't try to flush them down the toilet, bash them against the concrete floor of a patio or a steel rod, let our household's five kitty cats uranate (go to the litterbox) on them, run over them with a 450lb Quickie Pulse 6 (motorised wheelchair), or perform other indecencies on them that a regular flashlight might have to go through. So this section of the web page will be significantly more bare than this section of the web page on a page about a flashlight.਀㰀戀爀㸀 
<br>਀吀栀攀 猀攀琀 椀渀挀氀甀搀攀猀 琀眀漀 猀瀀愀爀攀 氀愀洀瀀猀Ⰰ 戀甀琀 琀栀攀礀✀爀攀 琀栀攀 猀洀愀氀氀 琀礀瀀攀 愀渀搀 䤀 栀愀瘀攀渀✀琀 昀椀最甀爀攀搀 漀甀琀 栀漀眀 琀漀 爀攀洀漀瘀攀 琀栀攀 瀀氀愀猀琀椀挀 ⠀䌀㜀봀 戀甀氀戀ⴀ猀栀愀瀀攀搀⤀ 挀漀瘀攀爀猀 漀渀 琀栀攀猀攀 氀椀最栀琀猀 琀漀 愀挀琀甀愀氀氀礀 甀猀攀 琀栀攀洀⸀㰀戀爀㸀 
Spare lamps in red and yellow only are furnished; perhaps they only include them because of a government mandate that all plug-in Christmas light sets sold in the US must include at least two spare bulbs (<i>this mandate should have really been revised years ago when LED-based light sets came into popularity!</i>).<BR><BR>਀ 
<center>਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ㐀⸀樀瀀最∀ 愀氀椀最渀㴀挀攀渀琀攀爀 栀猀瀀愀挀攀㴀㔀 䄀䰀吀㴀∀ ∀㸀㰀䈀刀㸀 
Here is one of the spare lamps.਀ 
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਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ㌀⸀樀瀀最∀ 愀氀椀最渀㴀挀攀渀琀攀爀 栀猀瀀愀挀攀㴀㔀 䄀䰀吀㴀∀ ∀㸀㰀䈀刀㸀 
The lights shown illuminated.<br>਀吀栀攀猀攀 戀甀氀戀猀 搀漀 渀漀琀 最攀琀 栀漀琀 漀爀 攀瘀攀渀 眀愀爀洀Ⰰ 猀漀 琀栀攀爀攀 椀猀 渀漀 昀椀爀攀 栀愀稀愀爀搀 栀攀爀攀℀ 
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<img src="http://www.ledmuseum.candlepower.us/44/xmas22-5.jpg" align=center hspace=5 ALT=" "><BR>਀吀栀攀 氀椀最栀琀猀 椀渀 洀礀 眀椀渀搀漀眀 愀猀 琀栀攀礀✀氀氀 戀攀 愀氀氀 栀漀氀椀搀愀礀 猀攀愀猀漀渀⸀㰀戀爀㸀 
That white light you see near the bottom of the window is my <a href="http://ledmuseum.candlepower.us/42/candle16.htm">Carlon FPC1525P Warm White LED Battery-Operated Candle</a>.਀㰀䈀刀㸀㰀䈀刀㸀㰀䈀刀㸀 
਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀爀眀⸀最椀昀∀ 䄀䰀吀㴀∀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀∀㸀 
<br>਀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀 漀昀 琀栀攀 爀攀搀 䰀䔀䐀猀 椀渀 琀栀椀猀 氀椀最栀琀 猀攀琀⸀ 
<br>਀㰀戀爀㸀 
<br>਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀爀渀⸀最椀昀∀ 䄀䰀吀㴀∀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀∀㸀 
<br>਀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀 漀昀 琀栀攀 爀攀搀 䰀䔀䐀猀 椀渀 琀栀椀猀 氀椀最栀琀 猀攀琀㬀 猀瀀攀挀琀爀漀洀攀琀攀爀✀猀 爀攀猀瀀漀渀猀攀 渀愀爀爀漀眀攀搀 琀漀 愀 戀愀渀搀 戀攀琀眀攀攀渀 㘀㐀　渀洀 愀渀搀 㘀㘀　渀洀 琀漀 瀀椀渀瀀漀椀渀琀 瀀攀愀欀 眀愀瘀攀氀攀渀最琀栀Ⰰ 眀栀椀挀栀 椀猀 㘀㔀㄀⸀㐀㜀　渀洀⸀ 
<br>਀㰀戀爀㸀 
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at <a href="http://ledmuseum.candlepower.us/44/xmas22-r.txt" target="new">http://ledmuseum.candlepower.us/44/xmas22-r.txt</a>਀㰀戀爀㸀 
<br>਀㰀戀爀㸀 
਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀漀眀⸀最椀昀∀ 䄀䰀吀㴀∀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀∀㸀 
<br>਀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀 漀昀 琀栀攀 漀爀愀渀最攀 䰀䔀䐀猀 椀渀 琀栀椀猀 氀椀最栀琀 猀攀琀⸀ 
<br>਀㰀戀爀㸀 
<br>਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀漀渀⸀最椀昀∀ 䄀䰀吀㴀∀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀∀㸀 
<br>਀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀 漀昀 琀栀攀 漀爀愀渀最攀 䰀䔀䐀猀 椀渀 琀栀椀猀 氀椀最栀琀 猀攀琀㬀 猀瀀攀挀琀爀漀洀攀琀攀爀✀猀 爀攀猀瀀漀渀猀攀 渀愀爀爀漀眀攀搀 琀漀 愀 戀愀渀搀 戀攀琀眀攀攀渀 㘀　㔀渀洀 愀渀搀 㘀㄀㔀渀洀 琀漀 瀀椀渀瀀漀椀渀琀 瀀攀愀欀 眀愀瘀攀氀攀渀最琀栀Ⰰ 眀栀椀挀栀 椀猀 㘀㄀㄀⸀㌀㔀　渀洀⸀ 
<br>਀㰀戀爀㸀 
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at <a href="http://ledmuseum.candlepower.us/44/xmas22-o.txt" target="new">http://ledmuseum.candlepower.us/44/xmas22-o.txt</a>਀㰀戀爀㸀 
<br>਀㰀戀爀㸀 
਀ 
<img src="http://www.ledmuseum.candlepower.us/44/xmas22yw.gif" ALT="Spectrographic analysis">਀㰀戀爀㸀 
Spectrographic analysis of the yellow LEDs in this light set.਀㰀戀爀㸀 
<br>਀㰀戀爀㸀 
<img src="http://www.ledmuseum.candlepower.us/44/xmas22yn.gif" ALT="Spectrographic analysis">਀㰀戀爀㸀 
Spectrographic analysis of the yellow LEDs in this light set; spectrometer's response narrowed to a band between 585nm and 595nm to pinpoint peak wavelength, which is 591.560nm.਀㰀戀爀㸀 
<br>਀吀栀攀 爀愀眀 猀瀀攀挀琀爀漀洀攀琀攀爀 搀愀琀愀 ⠀琀愀戀ⴀ搀攀氀椀洀椀琀攀搀 琀栀愀琀 挀愀渀 戀攀 氀漀愀搀攀搀 椀渀琀漀 䔀砀挀攀氀⤀ 椀猀 愀琀 㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ礀⸀琀砀琀∀ 琀愀爀最攀琀㴀∀渀攀眀∀㸀栀琀琀瀀㨀⼀⼀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ礀⸀琀砀琀㰀⼀愀㸀 
<br>਀㰀戀爀㸀 
<br>਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀最眀⸀最椀昀∀ 䄀䰀吀㴀∀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀∀㸀 
<br>਀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀 漀昀 琀栀攀 最爀攀攀渀 䰀䔀䐀猀 椀渀 琀栀椀猀 氀椀最栀琀 猀攀琀⸀ 
<br>਀㰀戀爀㸀 
<br>਀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀最渀⸀最椀昀∀ 䄀䰀吀㴀∀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀∀㸀 
<br>਀匀瀀攀挀琀爀漀最爀愀瀀栀椀挀 愀渀愀氀礀猀椀猀 漀昀 琀栀攀 最爀攀攀渀 䰀䔀䐀猀 椀渀 琀栀椀猀 氀椀最栀琀 猀攀琀㬀 猀瀀攀挀琀爀漀洀攀琀攀爀✀猀 爀攀猀瀀漀渀猀攀 渀愀爀爀漀眀攀搀 琀漀 愀 戀愀渀搀 戀攀琀眀攀攀渀 㔀㄀　渀洀 愀渀搀 㔀㈀　渀洀 琀漀 瀀椀渀瀀漀椀渀琀 瀀攀愀欀 眀愀瘀攀氀攀渀最琀栀Ⰰ 眀栀椀挀栀 椀猀 㔀㄀㐀⸀㐀㈀　渀洀⸀ 
<br>਀㰀戀爀㸀 
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at <a href="http://ledmuseum.candlepower.us/44/xmas22-g.txt" target="new">http://ledmuseum.candlepower.us/44/xmas22-g.txt</a>਀㰀戀爀㸀 
<br>਀㰀戀爀㸀 
<img src="http://www.ledmuseum.candlepower.us/44/xmas22bw.gif" ALT="Spectrographic analysis">਀㰀戀爀㸀 
Spectrographic analysis of the blue LEDs in this light set.਀㰀戀爀㸀 
<br>਀㰀戀爀㸀 
<img src="http://www.ledmuseum.candlepower.us/44/xmas22bn.gif" ALT="Spectrographic analysis">਀㰀戀爀㸀 
Spectrographic analysis of the blue LEDs in this light set; spectrometer's response narrowed to a band between 455nm and 465nm to pinpoint peak wavelength, which is 460.340nm.਀㰀戀爀㸀 
<br>਀吀栀攀 爀愀眀 猀瀀攀挀琀爀漀洀攀琀攀爀 搀愀琀愀 ⠀琀愀戀ⴀ搀攀氀椀洀椀琀攀搀 琀栀愀琀 挀愀渀 戀攀 氀漀愀搀攀搀 椀渀琀漀 䔀砀挀攀氀⤀ 椀猀 愀琀 㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ戀⸀琀砀琀∀ 琀愀爀最攀琀㴀∀渀攀眀∀㸀栀琀琀瀀㨀⼀⼀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀㐀㐀⼀砀洀愀猀㈀㈀ⴀ戀⸀琀砀琀㰀⼀愀㸀 
<br>਀㰀戀爀㸀 
<a href="/fifth/usb2000.htm">USB2000 Spectrometer</a> graciously donated by P.L.਀ 
<br>਀㰀戀爀㸀 
<br>਀ 
਀㰀⼀挀攀渀琀攀爀㸀 
<BR><BR><BR>਀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀　　　　∀㸀 㰀戀㸀吀䔀匀吀 一伀吀䔀匀㰀⼀戀㸀㨀㰀戀爀㸀 
Test unit was purchased at a Right Aid drug store in Federal Way WA. USA on 11-26-13.਀ 
<BR><BR><BR>਀ 
</font><font color="#ffffa0"><b>UPDATE:</b> 00-00-00</font><font color="#ffffa0"><br>਀ 
਀ 
<BR><BR><BR>਀ 
</font><font color="#ffa000" size="5"><i><b>PROS</b></i>:</font><font color="#ffffa0" size="3"><br>਀嘀攀爀礀 挀漀氀漀爀昀甀氀 愀渀搀 最愀礀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀　　　　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀㰀戀㸀㰀戀椀最㸀⨀㰀⼀戀椀最㸀㰀⼀戀㸀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀㰀戀爀㸀 
Extremely thrifty with power<br>਀ 
<br>਀㰀戀爀㸀 
<br>਀ 
਀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀愀　　　∀ 猀椀稀攀㴀∀㔀∀㸀㰀椀㸀㰀戀㸀一䔀唀吀刀䄀䰀㰀⼀戀㸀㰀⼀椀㸀㨀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀ 猀椀稀攀㴀∀㌀∀㸀㰀戀爀㸀 
਀ 
਀㰀䈀刀㸀㰀䈀刀㸀㰀䈀刀㸀 
</font><font color="#ffa000" size="5"><i><b>CONS</b></i>:</font><font color="#ffffa0" size="3"><br>਀一漀琀 琀漀漀 眀愀琀攀爀ⴀ爀攀猀椀猀琀愀渀琀㬀 戀甀琀 椀琀 䤀匀 爀愀琀攀搀 昀漀爀 戀漀琀栀 椀渀搀漀漀爀 ☀ 漀甀琀搀漀漀爀 甀猀攀 
<br>਀㰀戀爀㸀 
<br>਀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀　　　　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀㰀戀㸀㰀戀椀最㸀⨀㰀⼀戀椀最㸀㰀⼀戀㸀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀ 昀愀挀攀㴀∀嘀攀爀搀愀渀愀Ⰰ 䄀爀椀愀氀∀ 猀椀稀攀㴀∀㌀∀㸀 䜀愀礀 㴀 戀爀椀最栀琀 ☀ 氀椀瘀攀氀礀Ⰰ 㰀戀㸀㰀椀㸀⨀⨀⨀一伀吀⨀⨀⨀㰀⼀椀㸀㰀⼀戀㸀 栀漀洀漀猀攀砀甀愀氀⸀ 㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀爀漀氀氀㈀⸀最椀昀∀㸀 
਀㰀䈀刀㸀㰀䈀刀㸀㰀䈀刀㸀 
<font color="#ffffff">਀㰀挀攀渀琀攀爀㸀㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀瀀栀漀琀漀猀⼀昀椀爀攀⸀最椀昀∀ 眀椀搀琀栀㴀㤀㔀─ 栀攀椀最栀琀㴀㄀　 戀漀爀搀攀爀㴀　㸀㰀⼀挀攀渀琀攀爀㸀 
<ul>਀ 
MANUFACTURER: <b><i>Unknown </i></b><BR>਀倀刀伀䐀唀䌀吀 吀夀倀䔀㨀 㰀戀㸀㰀椀㸀匀攀愀猀漀渀愀氀 搀攀挀漀爀愀琀椀瘀攀 氀椀最栀琀 猀琀爀椀渀最 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
LAMP TYPE: <b><i>Unknown size (possibly 3mm reverse-conical) LED inside a C7½ bulb-style diffuser </i></b><BR>਀一漀⸀ 伀䘀 䰀䄀䴀倀匀㨀 㰀戀㸀㰀椀㸀㈀㔀 ⠀㔀砀 攀愀⸀ 爀攀搀Ⰰ 漀爀愀渀最攀Ⰰ 礀攀氀氀漀眀Ⰰ 最爀攀攀渀Ⰰ 戀氀甀攀⤀ 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
BEAM TYPE: <b><i>N/A </i></b><BR>਀匀圀䤀吀䌀䠀 吀夀倀䔀㨀 㰀戀㸀㰀椀㸀一⼀䄀 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
CASE MATERIAL: <b><i>Plastic </i></b><BR>਀䈀䔀娀䔀䰀㨀 㰀戀㸀㰀椀㸀一⼀䄀 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
BATTERY: <b><i>N/A </i></b><BR>਀䌀唀刀刀䔀一吀 䌀伀一匀唀䴀倀吀䤀伀一㨀 㰀戀㸀㰀椀㸀唀渀栀欀渀漀眀渀⼀甀渀愀戀氀攀 琀漀 洀攀愀猀甀爀攀 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
WATER- AND URANATION-RESISTANT: <b><i>Light splatter-resistance only </i></b><BR>਀匀唀䈀䴀䔀刀匀䤀䈀䰀䔀㨀 㰀戀㸀㰀椀㸀ꄀꄀꄀ倀䄀倀섀 一伀䔀䰀 䌀䄀䜀䄀一䐀伀 倀伀刀 唀一䄀 䌀䠀䤀䴀䔀一䔀䄀Ⰰ 一伀℀℀℀ 㰀椀洀最 猀爀挀㴀∀栀琀琀瀀㨀⼀⼀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀爀漀氀氀㈀⸀最椀昀∀㸀 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
ACCESSORIES: <b><i>2 spare "bulbs", 1 fuse</i></b><BR>਀匀䤀娀䔀㨀 㰀戀㸀㰀椀㸀㄀㔀 昀攀攀琀 氀椀最栀琀攀搀 猀琀爀椀渀最 氀攀渀最琀栀 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
WEIGHT: <b><i>324.80g (11.460 oz.) </i></b><BR>਀䌀伀唀一吀刀夀 伀䘀 䴀䄀一唀䘀䄀䌀吀唀刀䔀㨀 㰀戀㸀㰀椀㸀䌀栀椀渀愀 㰀⼀椀㸀㰀⼀戀㸀㰀䈀刀㸀 
WARRANTY: <b><i>3 years </i></b>਀㰀䈀刀㸀㰀䈀刀㸀 
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PRODUCT RATING:<BR><BR>਀ 
<img src="http://www.ledmuseum.candlepower.us/st4.gif" alt="Star Rating">਀ 
<BR><BR>਀㰀⼀戀㸀㰀⼀甀氀㸀 
<center><img src="http://www.ledmuseum.candlepower.us/photos/fire.gif" width=95% height=10 border=0></center>਀㰀䈀刀㸀 
<font color="#ffffa0">਀㰀挀攀渀琀攀爀㸀 
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਀㰀䈀刀㸀㰀䈀刀㸀 
<br>਀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀椀㸀䰀䔀䐀 䴀甀氀琀椀挀漀氀漀爀 䌀㜀 䰀椀最栀琀猀 ⨀ 㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀爀椀琀攀愀椀搀⸀挀漀洀∀ 琀愀爀最攀琀㴀∀渀攀眀∀㸀眀眀眀⸀爀椀最栀琀愀椀搀⸀挀漀洀㰀⼀䄀㸀㰀⼀椀㸀㰀⼀昀漀渀琀㸀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀戀爀㸀㰀戀爀㸀 
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<br>਀㰀戀爀㸀 
<br>਀㰀戀爀㸀 
<hr><font color="#ffffa0">਀䐀漀 礀漀甀 洀愀渀甀昀愀挀琀甀爀攀 漀爀 猀攀氀氀 愀渀 䰀䔀䐀 昀氀愀猀栀氀椀最栀琀Ⰰ 琀愀猀欀 氀椀最栀琀Ⰰ 甀琀椀氀椀琀礀 氀椀最栀琀Ⰰ 漀爀 洀漀搀甀氀攀 漀昀 猀漀洀攀 欀椀渀搀㼀 
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਀爀攀愀氀ⴀ眀漀爀氀搀Ⰰ 爀攀愀氀ⴀ琀椀洀攀 琀攀猀琀椀渀最Ⰰ 瀀氀攀愀猀攀 挀漀渀琀愀挀琀 洀攀 愀琀 㰀䄀 䠀刀䔀䘀㴀∀洀愀椀氀琀漀㨀氀攀搀洀甀猀攀甀洀䀀最洀愀椀氀⸀挀漀洀∀㸀氀攀搀洀甀猀攀甀洀䀀最洀愀椀氀⸀挀漀洀㰀⼀䄀㸀⸀㰀戀爀㸀 
<br>਀倀氀攀愀猀攀 瘀椀猀椀琀 㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀挀漀渀琀愀挀琀⸀栀琀洀∀㸀琀栀椀猀 眀攀戀 瀀愀最攀㰀⼀愀㸀 昀漀爀 挀漀渀琀愀挀琀 椀渀昀漀爀洀愀琀椀漀渀⸀ 
<br>਀㰀戀爀㸀 
<font color="#ffffa0">਀唀渀猀漀氀椀挀椀琀攀搀 昀氀愀猀栀氀椀最栀琀猀Ⰰ 䰀䔀䐀猀Ⰰ 愀渀搀 漀琀栀攀爀 瀀爀漀搀甀挀琀猀 愀瀀瀀攀愀爀椀渀最 椀渀 琀栀攀 洀愀椀氀 愀爀攀 眀攀氀挀漀洀攀Ⰰ 愀渀搀 椀琀 眀椀氀氀 愀甀琀漀洀愀琀椀挀愀氀氀礀 戀攀 愀猀猀甀洀攀搀 琀栀愀琀 礀漀甀 猀攀渀琀 椀琀 椀渀 漀爀搀攀爀 琀漀 栀愀瘀攀 椀琀 琀攀猀琀攀搀 愀渀搀 攀瘀愀氀甀愀琀攀搀 昀漀爀 琀栀椀猀 猀椀琀攀⸀㰀戀爀㸀 
Be sure to include contact info or your company website's URL so visitors here will know where to purchase your product.<br>਀ 
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<br>਀㰀戀爀㸀 
਀㰀⼀挀攀渀琀攀爀㸀㰀栀爀㸀 
<font color="#C0FFFF" size="3"><pre>਀ 
਀㰀昀漀渀琀 挀漀氀漀爀㴀∀⌀昀昀昀昀愀　∀㸀㰀戀爀㸀㰀戀爀㸀㰀戀爀㸀㰀戀爀㸀吀栀椀猀 瀀愀最攀 椀猀 愀 昀爀愀洀攀 昀爀漀洀 愀 眀攀戀猀椀琀攀⸀㰀戀爀㸀䤀昀 礀漀甀 愀爀爀椀瘀攀搀 漀渀 琀栀椀猀 瀀愀最攀 琀栀爀漀甀最栀 愀渀 漀甀琀猀椀搀攀 氀椀渀欀Ⰰ礀漀甀 挀愀渀 最攀琀 琀栀攀 ∀昀甀氀氀 洀攀愀氀 搀攀愀氀∀ 戀礀 㰀愀 栀爀攀昀㴀∀栀琀琀瀀㨀⼀⼀眀眀眀⸀氀攀搀洀甀猀攀甀洀⸀挀愀渀搀氀攀瀀漀眀攀爀⸀甀猀⼀氀攀搀⼀氀攀搀氀攀昀琀⸀栀琀洀∀ 琀愀爀最攀琀㴀∀开琀漀瀀∀㸀挀氀椀挀欀椀渀最 栀攀爀攀㰀⼀愀㸀⸀㰀戀爀㸀㰀戀爀㸀㰀⼀戀漀搀礀㸀㰀⼀栀琀洀氀㸀 
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