REVIEW - Sofirn SD05 - No Stepdown Version

[71k5]

@Funtastic

@71k5

FYI

You are probably already aware of this.

Sofirn removed the 3 minute step down, but the Thermal step down, at 55 Celsius, remains.

When diving, it won’t come into play though, since the H2O cooling will keep it from ever reaching 55 Celsius, unless you do all your diving in hot tubs, thermal springs or geysers.

Step down is actually triggered at 44°C, pretty normal for most that haven’t been calibrated at the factory

This reviewer tested the thermal temp regulator on the Sofirn SD05, and confirmed Sofirn’s stated specification of ATR to be set at 55 Celsius, here: SD05 Thermal Stepdown Test

Where the reviewer states, “Sofirn’s brand new SD05 diving flashlight is advertised with a 3min timer-triggered stepdown and a thermal regulation that also reduces power/brightness when the driver’s temperature reaches 55°C.”

and

“I was not able to drive the heat beyond 53°C which is a good indicator that Sofirn’s ATR technology works effectively.”
As shown in this thermal imaging video of the SD05 here: SD05 Thermal Imaging ATR Test