I've now had three out of eight of the Lights of America (professionally engineered) 110 volt LED bulbs fail. ... In addition one of the bulbs I bought from Sailor Sam's (at marine pricing) is intermittently going dim.
I "built up" 6 of these beauties running off of 12.6 volts. I didn't use a resistor but simply figured the voltage drops needed! They all failed within a month.
... I liked the idea of adding in some yellow light. Unlike you, I don't care for that intense white light. They must have different temps of white so that you don't have to mix colors. ...
I am going to build some more though. What do you suggest for a source for the LED's. I liked the idea of adding in some yellow light. Unlike you, I don't care for that intense white light. They must have different temps of white so that you don't have to mix colors.
I'll probably get shot down for the next statement but it appears to me that the voltage of the LEDs is a function of the colour output. If that is true you might be able to use the voltage of the LED as an indicator of the colour of the light output. But note: I never said that was true or a rule - its just something I have noticed and not pursued.
Quote from: JohnEd on April 09, 2009, 10:21:05 AM... I liked the idea of adding in some yellow light. Unlike you, I don't care for that intense white light. They must have different temps of white so that you don't have to mix colors. ...John,White LED's are not really sold by "color temperature" (although you could certainly calculate it)...
In addition one of the bulbs I bought from Sailor Sam's (at marine pricing) is intermittently going dim. Usually if I slap it lightly or turn it off and back on it comes back.
Sean, that's not entirely correct... (I'll explain in a second)
Osram (they make the "Golden Dragon" LED)...
I did see you said "not entirely correct" so I'll let you slide