LUMINUS HIGH-POWERED LEDS
Luminus SST-90-W High-Powered White LED
Received 08-07-09, tested 08-22-09

This is another one of the Phlatlight LEDs; it is high-powered, and has a single large die (light-emitting region) inside of it instead of a little itty bitty die like most 5mm round (through-hole) lamps have.

That would technically make this a "large junction device"; loosely defined as LEDs having a die size of greater than 1mm2.

Luminus LED
This is what this LED looks like.

From the Luminus website, comes the following:
Beam photograph
Photograph of the LED's "beam" on the test target at 12".
Measures 83,000mcd on a Meterman LM631 (now Amprobe LM631A) light meter.

This is a very wide angle light source; and if I've told you once, I've told you 31,054,500 times:
Wider viewing angles always, always, ALWAYS equal lower mcd values!!!

This measurement was taken with an If (forward current) of 932mA, which is the highest my Energy One XP-4 power supply can deliver. The Vf (forward voltage) was measured at 2.730 volts.

Spectrographic analysis
Spectrographic analysis of this LED.





Luminus CST-90 High-Powered White LED
Received 08-07-09, tested 08-11-09

This is another one of the Phlatlight LEDs; it is high-powered, and has a single large die (light-emitting region) inside of it instead of a little itty bitty die like most 5mm round (through-hole) lamps have.

That would technically make this a "large junction device"; loosely defined as LEDs having a die size of greater than 1mm2.

Luminus LED
This is what this LED looks like, when compared with a standard "garden variety" round 5mm LED.

From the Luminus website, comes the following:
  • High Output - 1000 lumens (6500K at high efficiency) and up to 2750 lumens (6500K at high output)
  • Large, single chip with an emitting surface area of 9.0 mm2
  • High thermal conductivity package with a package thermal resistance of only 0.9°C/W
  • Integrated thermistor allows for real-time monitoring of the LED's temperature
  • Lumen maintenance of greater than 70% after 60,000 hours
  • Variable drive current from less than 1 A to 13 A
  • Available in a variety of Correlated Color Temperatures (CCT's) per ANSI C78-377-2008
  • Designed with a standard on-board connector

Beam photograph
Photograph of the LED's "beam" on the test target at 12".
Measures 73,000mcd on a Meterman LM631 (now Amprobe LM631A) light meter.

This is a very wide angle light source; and if I've told you once, I've told you 1,053,000 times:
Wider viewing angles always, always, ALWAYS equal lower mcd values!!!

This measurement was taken with an If (forward current) of 932mA, which is the highest my Energy One XP-4 power supply can deliver. The Vf (forward voltage) was measured at 2.721 volts.

Spectrographic analysis
Spectrographic analysis of this LED.





Luminus SST-50 High-Powered White LED
Received 08-07-09, tested 08-08-09

This is another one of the Phlatlight LEDs; it is high-powered, and has a single large die (light-emitting region) inside of it instead of a little itty bitty die like most 5mm round (through-hole) lamps have.

That would technically make this a "large junction device"; loosely defined as LEDs having a die size of greater than 1mm2.

Luminus LED
This is what this LED looks like, when compared with a standard "garden variety" round 5mm LED.

From the Luminus website, comes the following:
  • High Output - 550 lumens (6500K at high efficiency) or as much as 1250 lumens (6500K at high output)
  • High thermal conductivity package with a package thermal resistance of only 2.57°C/W
  • Lumen maintenance of greater than 70% after 60,000 hours
  • Variable drive current from less than 1 A to 5 A
  • Available in a variety of Correlated Color Temperatures (CCT's) per ANSI C78-377-2008
  • Designed for standard SMT assembly processes
  • SMT package offered pre-mounted on a star board MCPCB for prototyping and evaluation

Beam photograph
Photograph of the LED's "beam" on the test target at 12".
Measures 82,000mcd on a Meterman LM631 (now Amprobe LM631A) light meter.

This is a very wide angle light source; and if I've told you once, I've told you 31,054,500 times:
Wider viewing angles always, always, ALWAYS equal lower mcd values!!!

This measurement was taken with an If (forward current) of 932mA, which is the highest my Energy One XP-4 power supply can deliver. The Vf (forward voltage) was measured at 2.810 volts.

Spectrographic analysis
Spectrographic analysis of this LED.






Luminus CSM-360-W High-Powered White LED
Received & tested on 08-07-09; update with new measurement on 08-13-09

This is one of the Phlatlight LEDs; it is super high-powered, and has four large dice (light-emitting regions) inside of it instead of one little itty bitty die (the correct singular form of "dice") like most 5mm round (through-hole) lamps have.

That would technically make this a "large junction device"; loosely defined as LEDs having a die size of greater than 1mm2.

Luminus LED
This is what this LED looks like, when compared with a standard "garden variety" round 5mm LED.

From the Luminus website, comes the following:
  • High Output – 3600 lumens (6500K at high efficiency) or as much as 6000 lumens (6500K at high output)
  • Four large chips with an emitting surface area of 36.0 mm2
  • High thermal conductivity package with a package thermal resistance of only 0.96°C/W
  • Integrated thermistor allows for real-time monitoring of the LED’s temperature
  • Lumen maintenance of greater than 70% after 60,000 hours
  • Variable drive current from less than 1 A to 6.3 A
  • Available in a variety of Correlated Color Temperatures (CCT’s) per ANSI C78-377-2008
  • Designed with a standard on-board connector

Beam photograph
Photograph of the LED's "beam" on the test target at 12".
Measures an amazing 502,000mcd on a Meterman LM631 (now Amprobe LM631A) light meter.

This is a very wide angle light source; and if I've told you once, I've told you 2,458,770 times:
Wider viewing angles always, always, ALWAYS equal lower mcd values!!!
For a wide-angle source, this isn't just "bright". It's "***FRICKIN' BRIGHT!!!***"

This measurement was taken with an If (forward current) of 932mA, which is the highest my Energy One XP-4 power supply can deliver. The Vf (forward voltage) was measured at 11.550 volts.


Spectrographic analysis
Spectrographic analysis of this monster LED.


ProMetric analysis
Beam cross-sectional analysis.
That squarish "dip" to the left of center that queered the test is a defect in the ProMetric's CCD array, and the one to the right of center appears to be a defect in the target itself.

Image made using the ProMetric System by Radiant Imaging.


(Update 08-13-09): I took a new intensity measurement when furnishing the LED a Vf=11.890 volts and If=1,0560mA (1.0560A); using a heatsink that Mike Boyd (the man who established my initial contact between me and Mark M. at Luminus) furnished me) and the power supply furnished with the Light Biscuit.
Measures 642,000mcd (bare LED without Bailey reflector in place)


Reflector photograph
This is the Bailey reflector with the LED mounted beneath it.

Beam photograph
Photograph of the LED's beam (with the Bailey reflector made specifically for this LED that Mike Boyd was kind enough to loan me) on the test target at 12".
Photograph deliberately left uncropped allowing you to see the entire beam.

Measures 1,890,000 mcd on a Meterman LM631 (now Amprobe LM631A) light meter.


(Update 08-16-09): I performed a beam cross-sectional analysis of this LED with the Bailey reflector in place.

ProMetric analysis
Beam cross-sectional analysis with the Bailey reflector in place.
That squarish "dip" to the left of center that queered the test AGAIN is a defect in the ProMetric's CCD array, and the slightly darker spot to the right of center appears to be a defect in the target itself.

Image made using the ProMetric System by Radiant Imaging.

















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