reserved for updates
Center mass of the light is 109mm from the head, so just 4mm from the switch center towards the battery tube
I consider this a good balance for a light with such a large head
Relative output:
measured between the modes
I did multiple this value with the rated 2200Lumens
Moon
0.0037% 0.09 Lumens
L1
1.01% 23,8 Lumens
M
11.62% 260 Lumens
H1
34.55% 960 Lumens
H2
79.42% 1750 Lumens
Turbo
100% 2200 Lumens
The light reaches full output even with drained battery a test with 3.7V showed same brightness as with full cells brightness
.
I noticed today that the light sometimes flicker in Turbo after a few seconds then a few seconds later it stops again
I looked now again close on the driver and its used parts
The driver uses a pretty bad MOSFET compared to new Infineon and Vishay types
and the driver has no Output capacitor to smooth the PWM from the Buck regulator
So I did 3 improvements replacing 2 parts that could cause the flicker investing 2€ of parts
- first remove the old MOSFET and solder one of the best available ones there
- second remove the Diode and put in a 10A SMD type
- third add a 4.7uF 07R capacitor parallel to the main LED
I have also found some inconsistencies in the UI
for example if I switch the light on with an auxiliary button then click the main switch the light turns off
while I turn the light on with main button switch to aux buttons then main switch gets me back to memorized modes
Another odd thing is this
I have a medium mode memorized for main switch
I turn on the light with Turbo on auxiliary button and turn it off with the same auxiliary or the main button,
then the light comes on in moon the next time I switch it on with main switch
after this I turn the light on with a blinky mode on the other auxiliary
now I switch it off with that button or main button
and now switching on the main switch recognizes again the stored medium mode
Next thing
I switch the light on with blink mode on aux1 or switch it on with main button then switch to aux1
then switch to turbo on the 2. aux button
if I click now the main switch I do not get the memorized light level instead I get again the blinky mode of aux1 button
If the light is switched on with momentary Turbo then hold for Turbo it is not possible to change modes with main button
instead the light shuts down whith a long press
.
Playing more with the light I notice at some points a whining sound from the driver, I am pretty sure the unshielded inductor is causing it
So I switched out the Inductor with a 10uF shielded one
just in case I added another 4.7uF cap on the input in case the used inductor was smaller value
on to do list
- Pictures from Inside the head
- modding to NW XHP35 E2-3C
maybe a short video showing the UI
maybe add video or gif of tail cap LEDs
- destruction test with a tank :smiling_imp: just kidding