K
Ken Roberts
- Jan 1, 1970
- 0
I bought a new set of Luxeons from "acme corp" (rather not reveal this
company yet) - and although I am happy with the rest, the most
expensive, $30 Blue LXHL-LB5C shows as white. On my test rig, at very
dim current levels (100-200 mA) it seems like it might have the
slightest teal color - maybe - but higher than that and all the way up
to the rated 700 mA it is white as white cane be.
At this price - how could they sell a blue LED that's white?
I checked the numbering on the back, and it seems to be the advertised
unit:
R5WB 0000058
4202LXHLLB5C
However, the lettering is much thicker than the lettering on the Star
III, and the backing is shiny aluminum. Also the lettering is all
thew way left and the left digits are even slightly clipped. The III
lettering is centered exactly. On the Star III's the backing is
brushed aluminum. So I am a bit suspiscious - however it seems
difficult to re-letter these, and more effort than it is worth. But
to compare, here is one of the III's :
T3J6 0001954
2605LXHLLM3C
LUXEON
Seems odd that the V does not have the word "LUXEON" below the
numbers, but the III's are actually newer than the V's.
They also sell a "Royal Blue" Star V, and perhaps that is the real
blue version. But the color chart shows that wavelength as being very
close to their Blue wavelength. I wonder if this somehow got
switched. I do have a 1-watt Blue Luxeon Star/O LED and it is as blue
as blue can be !!!
company yet) - and although I am happy with the rest, the most
expensive, $30 Blue LXHL-LB5C shows as white. On my test rig, at very
dim current levels (100-200 mA) it seems like it might have the
slightest teal color - maybe - but higher than that and all the way up
to the rated 700 mA it is white as white cane be.
At this price - how could they sell a blue LED that's white?
I checked the numbering on the back, and it seems to be the advertised
unit:
R5WB 0000058
4202LXHLLB5C
However, the lettering is much thicker than the lettering on the Star
III, and the backing is shiny aluminum. Also the lettering is all
thew way left and the left digits are even slightly clipped. The III
lettering is centered exactly. On the Star III's the backing is
brushed aluminum. So I am a bit suspiscious - however it seems
difficult to re-letter these, and more effort than it is worth. But
to compare, here is one of the III's :
T3J6 0001954
2605LXHLLM3C
LUXEON
Seems odd that the V does not have the word "LUXEON" below the
numbers, but the III's are actually newer than the V's.
They also sell a "Royal Blue" Star V, and perhaps that is the real
blue version. But the color chart shows that wavelength as being very
close to their Blue wavelength. I wonder if this somehow got
switched. I do have a 1-watt Blue Luxeon Star/O LED and it is as blue
as blue can be !!!