Haikelite MT03 (updated)

[cera (cera@1967)]

Nice light ! I understood that you want to mode it and the steps recommended by "ImA4Wheelr" are very pertinent and , most of all , electronic correct . The saturation of the magnetic core of the coil will generate also a lot of heat . The solution is to solder a bigger one (hard to do ) or to DIY one from a toroidal core , in the old fashioned way , by winding and measure the inductance.., let's hope that will not be the case !

Second thing that I want to suggest is to change the electrolitic capacitor (big black cilinder) with a SMD tipe with the voltage bigger than the maximum Vin from the batteries (at least X 1.5 ) . From my experience this capacitor is the bottle neck of ALL drivers that has something like this , the temperature is increasing their capacitive reactance and in time the luminous flux will decrease dramatic , as the temperature is the capacitors worst enemy. The SMD ones are less sensitive, better quality and stability in time .

The value is not critical , I used in my modding and repairs values from 22 to 100 micro farads with no problems.

Hope that this was helpful ! Cheers !

[hannesremo]

I just got this light, did a spring bypass, dedomed emitters, how could I make it direct drive?

[Jerommel]

I have the mkII of the MT03 and the driver seems to be identical to this one.
Very tiny inductors…
Let me link to my mod topic, because i’m modding the driver (when parts arrive), and the first thing is to replace the inductors with “60-52” toroids (light green with blue side 15mm outer diameter) with 1mm diameter wire.

Haikelight MT03 II modding (driver)

Hey all, Not long ago i received my MT03 II (as in mark 2) “Devourer”, which can do around 9000 Lumen out of the box. It’s a neat looking thing and obviously very bright… Of course i was curious about the insides, and i also think it should be able to 12000 Lumen or more. I already did the mandatory spring bypasses, but i need to do the driver too, and the heat management could use some attention too. My questions mainly concern the driver. Here’s a couple of pics with my comments…

Plan is to also upgrade the FETs and diodes and finish it off with a resistor mod (0.03 Ohm)
I hope all will still fit inside the head… :person_facepalming:

PS: It seems that fat driver retaining ring in mine is made of copper ?!

[Terry_White]

Okay I give up lol... I know this thread has been around awhile but I gotta know...

What the he** did you use to remove the retainer. I've tried every tool here and headed to Lowe's now.

I can probably just force it but I really don't want it all scratched with deep gouges...

Thanks very much

[Nicolicous]

simply you can use a flathead screw driver and flick out the retainer. It has a weak glue which comes off easily.

[Terry_White]

@Nicolicous

simply you can use a flathead screw driver and flick out the retainer. It has a weak glue which comes off easily.

So the piece with the 2 tiny holes is covering the retainer. In the pictires it looks threadded in pretty deep.

[dmsoule]

I ground down the tips of some cheap needle nose pliers to make them fit. Most snap-ring pliers don’t open wide enough.

[Terry_White]

@dmsoule

I ground down the tips of some cheap needle nose pliers to make them fit. Most snap-ring pliers don’t open wide enough.

Not even my Channellock snap ring pliars fit and they open wider than any I have fo und. Lol have to do some grinding I guess. I should have brought my angle grinder home from work... love no cords.