Sorry for coming back late. I am busy with my job.
Runtime test:
MT01 2200 Lumens —Uncooled condition
Room temprature 26℃,without cooling,Use 3x Sansumg 35E,Voltage 4.185V、4.189V and 4.175V.
turn on 2200 Lumens mode,Beam is 1 meter distance from the luxmeter, Recording the date every 6 seconds, 10 sets of recording date in 1 minute , Total 1900 sets of date, Then i get the full illumination curve.
Below is my self-made box device
As you can see,It starts at 47200LUX from 1 meter, Not until 1089 sets of recording date,the illumination comes to 40 000 Lux. It means the runtime is 108.9 minutes on 2200 lumens mode. All the process is very stable and smooth. Good current regulation performance
2200 lumens , without cooling
On 1090th Set( 109 minute) , the illumination goes down to 39800LUX. On 114.2 minutes, the illumination goes down very fast to 11480LUX. The brightness remains the same from 114 minutes to 133.3 munites.
Then on 133.3 munites the flashlight starts to flash to alert low-voltage. On 170.5 Minute , the flashlight shut down.
Now i took out the batteries , All at 2.87V , nice cut-off voltage
thank you. I am working on uploading the photos. I used a small fan to cool the light on high mode runtime test. would try to put it in the water to test again.
all tests are ready, except the runtime test on middle low and extreme low mode.
Thanks for the review updates so far, and the effort you’ve put into the review. As well as aforementioned heat handling on high, I’m interested to know the beam profile and angle (light vertical against white wall).
Hey how are you doing? Thank you very much for the fine review. The pictures are really beautiful! I also like the beamshots that show hints of Asian flavour.