Thanks for your encouraging comments, MascaratumB, Scallywag, CNCman and pinkpanda3310 !
After a month, I have made up my mind which host and led configuration to use in my OL contest modded flashlight this year.
I updated the OP with pictures of the host and the reflector. It will be a big host with 9cm head diameter and optional 8 18650 tube, a heavy copper spacer and seven XHP70.2 leds.
Thanks for the nice comments, MRsDNF, MtnDon and MascaratumB. Sorry if I am replying late but here are the updates.
A few days ago I drilled out the holes of the seven leds reflector. I used a 10mm drill bit.
Before drilling
Half done with drilling
After drilling, I removed sharp edges and cleaned the reflector with air. It looks nice again and the holes are a little bigger now.
The switch retaining ring had to be drilled, too, to allow fitting a Convoy L6 switch cover. The self-made silicone covers did not work properly.
Switch retaining ring before drilling
After drilling and filing
Last Thursday five XHP70.2 leds arrived. I will use four of them in this flashlight. They are 5000K 90 CRI with N2 3C bin. I bought them at the HotRed Official Store on Aliexpress. XHP70.2 90CRI
Compared to a XHP70.2 P2 3A with 70 CRI (bottom right corner) it is clearly visible that these leds have the for high CRI leds typical orange phospor cover.
The four XHP70.2 look great in the reflector. The for now empty spaces will be fitted with three XHP70.2 P2 7A 70 CRI leds to achieve a rosy 4000K light.
That’s for sure. I added some new pictures below where you can see that I will actually use 7 XHP70 with a big copper spacer underneath.
I didn’t want to make an advertisement for the Deko brand :innocent: but it is a great drill. It is one of the few drills on Aliexpress that is brushless. It is said that brushless motors are more efficient, stronger and better than brushed motors. The Deko drill is indeed strong with 58Nm torque and it even has an impact mode for drilling walls. It has a 40Wh battery that seems to last forever, two speed settings and a very handy percentage display on the battery pack.
I am not an expert in drills but compared to the old drill with Ni-MH batteries that I used previously this is a whole new world. So far, I found no flaws with this Deko drill and I would recommend it. [end of advertisement ]