audioguru Well-Known Member Most Helpful Member Dec 28, 2010 #21 Don't buy the cheap Chinese no-name-brand LED. Its datasheet does not say how long it lasts (or how soon it fails) at 100mA. At 100mA, its nominal brightness is 10 lumens, its max is 15 lumens and its minimum brightness is zero lumens!
Don't buy the cheap Chinese no-name-brand LED. Its datasheet does not say how long it lasts (or how soon it fails) at 100mA. At 100mA, its nominal brightness is 10 lumens, its max is 15 lumens and its minimum brightness is zero lumens!
be80be Well-Known Member Dec 28, 2010 #22 How's this 1 watt Lumex : LED & LCD Solutions : Product Last edited: Dec 28, 2010
audioguru Well-Known Member Most Helpful Member Dec 29, 2010 #23 The Lumex LEDs are double the size of normal 5mm LEDs. They use their leads to carry heat away to a large pcb copper area.
The Lumex LEDs are double the size of normal 5mm LEDs. They use their leads to carry heat away to a large pcb copper area.
be80be Well-Known Member Dec 29, 2010 #24 They look like small heat sink on the Leds. There two back to back diodes inside plus the LED inside.
They look like small heat sink on the Leds. There two back to back diodes inside plus the LED inside.