The journey of light :
LED FAQ-s :
http://www2.whidbey.net/opto/LEDFAQ/The%20LED%20FAQ%20Pages.php#Q3 - Q&A about powering up LEDs . A must read !
http://www.gizmology.net/LEDs.php - General information plus something about candelas.
Reviews , tests , tips , news :
http://www.ledmuseum.org - the most complete site about LEDs.
http://www.dansdata.com/ledlights8.php - a very interesting article about LEDs.
Forums :
http://www.candlepowerforums.com - a large forum about flashlights and LEDs . A huge source of knowledge.
From history to detalied explanation of terms - all below:
http://encyclopedia.thefreedictionary.com/light%20emitting%20diode
http://en.wikipedia.org/wiki/Light-emitting_diode
http://www.mtmi.vu.lt/pfk/funkc_dariniai/diod/led.php - a vast article about LEDs.
http://hyperphysics.phy-astr.gsu.edu/hbase/vision/photom.php - Do u want to know more about lux , candela or lumen ? This is the place .

