chimo
Flashlight Enthusiast
I recently borrowed a Fluke Ti20 thermal imager from work. As well as checking around the house for thermal "leaks" I decided to put it to use on some flashlights. The pics you will see are just jpegs, however, the Fluke software gives a full thermal profile across the image.
This one is a series of pics from a Jil Intelli running full out. The time span from first pic to the last in the series is 6 min 18 sec. The high/low temps went from 27/29C (80/84F) to 62/67C (143/153F)! I stopped the test at that point because I did not want to cause the poor little RCR2 Li-ion cell to go postal and damage the Jil. The drive current in this tiny light is at or over an amp, so don't leave it on unattended, even for short periods of time!
This next one is a McLuxIII PD running at the standard current (~530mA). It heats up nice and evenly and was fine to leave on without overheating. Time span was 7 min 28 sec and the high/low temps were 28C/82F to 36C/97F.
Paul
This one is a series of pics from a Jil Intelli running full out. The time span from first pic to the last in the series is 6 min 18 sec. The high/low temps went from 27/29C (80/84F) to 62/67C (143/153F)! I stopped the test at that point because I did not want to cause the poor little RCR2 Li-ion cell to go postal and damage the Jil. The drive current in this tiny light is at or over an amp, so don't leave it on unattended, even for short periods of time!
This next one is a McLuxIII PD running at the standard current (~530mA). It heats up nice and evenly and was fine to leave on without overheating. Time span was 7 min 28 sec and the high/low temps were 28C/82F to 36C/97F.
Paul