Mutie
Enlightened
Luxeon\'s at 3v
I bought my first Luxeons two months ago. These are blue LS/O, direct drive off 2 AA, no heat sink, mounted on the palms of my LED fingers. I'm quite happy with the results.
However with everything I've read on here I feel like I'm wearing a headlight at the mall. Before I got them I read the spec sheets and the thermal design specs and I was really worried about the heat issue. But it was all theoretical and I had to see for myself so I got 2. My neighbor does all the repair and maintenance for Warner Bros Recording and has all the right equip and was also curious so we ran our tests on his equipment. We ran from minimum to maximum specs using a current regulated supply at 350 ma. There was not really any noticeable difference in either brightness and the warmest the LED got was lukewarm. I notice everybody here overdrives and/or uses dc to dc converters even though 3v seems to be quite within specs. So what am I missing and how much brighter output are you getting to make it worth all the extra hassle? I also clocked 12 hours of run time with great brightness before I forgot to turn them off and killed the batteries. That also seems to go against what I'm reading here.
Also having read about the Royal Blue 5 watts on here I'm anxious to get and try some. Same fears and questions really that I had with the 1 watt. Also specs seem to indicate that 6v is within specs but somewhere on here I read 6.8v to even fire. How hot do these really get when driven within specs? With my design constraints I really don't want to go with converters or heatsinks unless I have to. Obviously if I have to then I'll adjust my designs but I'm really hoping that like the 1 watt it will work.
I bought my first Luxeons two months ago. These are blue LS/O, direct drive off 2 AA, no heat sink, mounted on the palms of my LED fingers. I'm quite happy with the results.
However with everything I've read on here I feel like I'm wearing a headlight at the mall. Before I got them I read the spec sheets and the thermal design specs and I was really worried about the heat issue. But it was all theoretical and I had to see for myself so I got 2. My neighbor does all the repair and maintenance for Warner Bros Recording and has all the right equip and was also curious so we ran our tests on his equipment. We ran from minimum to maximum specs using a current regulated supply at 350 ma. There was not really any noticeable difference in either brightness and the warmest the LED got was lukewarm. I notice everybody here overdrives and/or uses dc to dc converters even though 3v seems to be quite within specs. So what am I missing and how much brighter output are you getting to make it worth all the extra hassle? I also clocked 12 hours of run time with great brightness before I forgot to turn them off and killed the batteries. That also seems to go against what I'm reading here.
Also having read about the Royal Blue 5 watts on here I'm anxious to get and try some. Same fears and questions really that I had with the 1 watt. Also specs seem to indicate that 6v is within specs but somewhere on here I read 6.8v to even fire. How hot do these really get when driven within specs? With my design constraints I really don't want to go with converters or heatsinks unless I have to. Obviously if I have to then I'll adjust my designs but I'm really hoping that like the 1 watt it will work.