TR-0124 14-66W 5-Mode LED Flashlight Driver for Luminus SST-90

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Driver is from Fasttech.com.

Official specifications



Measurements

Tested with: SST-90
Diameter: 32mm
Height: 28mm
Driver uses buck converter.
Modes: High, medium, low, strobe, sos
Light has mode memory.
A fast off/on will change to next mode.
Medium uses pwm at 125Hz and 42% duty cycle
Low uses pwm at 125Hz and 9% duty cycle
Strobe is 8Hz with 50% duty cycle



High

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL

The name of this driver is a bit misleading, it "only" uses up to about 25 watt, not 66 watt.
The driver keeps the brightness fairly stable from 4 volt to 13 volt input, but at the lower voltages it does not works as smooth as at higher voltages.

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HLDriver

The driver needs some cooling, it has to get rid of between 3 watt and 5 watt. Looks like the driver changes mode somewhere between 5.5 and 6.0 volt.

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HLLed

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20LH

The driver starts up below 3 volt and when the voltage increases it looks like the mode change happens at a higher voltage.

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20LHDriver
TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20LHLed


High%2010.8V
High%207.2V

The output has some high frequency noise in it.



Medium

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL%20medium

To reduce brightness the driver uses pwm, this means that the actual curves will be close to the high curves, just with less current.

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL%20mediumDriver
TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL%20mediumLed

Medium%2010.8V
Medium%207.2V

The pwm frequency is about 125Hz.



Low

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL%20low

Low is using pwm at the same frequency and again the general shape of the curves looks like high, but with lower average current.
The efficiency goes down, because the driver needs about the same power for itself as it does on high.

TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL%20lowDriver
TR-0124%2014-66W%205-Mode%20Luminus%20SST-90%20(TR-0163)%20HL%20lowLed

Low%2010.8V
Low%207.2V

The duty cycle is down to 9%.



Strobe

Strobe%2010.8V
Strobe%207.2V

Strobe is at 8Hz with full brightness (As expected from a pwm driver).



SOS

SOS%2010.8V
SOS%207.2V



Conclusion

I am not impressed with the efficiency and I do also have something agains the bumps in the performace at lower voltage. It would have been nice with a low voltage warning.
Some people will not like the low pwm frequency.



Notes

How do I test a led driver
List of all tested drivers