Upgrading Convoy S2+

[Boreack]

Last day some parts arrived and was time to upgrade my little Purple Convoy S2+ and mount a smaller 18350 Blue Convoy S2+.

In the Purple, I changed the standar driver for a 8A buck driver, and the SST40 for a SFT40 with a 15º flat TIR reflector.
The blue one has the short tube for the 18350 battery, the original driver from the other Convoy S2+ and a Nichia 519A with a 60º bead TIR reflector.

I also added a clip to the blue and a magnet to the purple.

Greetings.

 

[Boreack]

I've made some testing with a luminance meter, and here are the results.
I measured luxes (lx) at 29cm, with 5 modes (100%, 35%, 10%, 1% & 0.1%) and convert to Candela (cd).
For the first mode, the light ramp down with temperature, so I made 2 measurements, second one at about 30" from start. The other 4 modes are stables.
Candelas are rounded to integers.

	Nichia 519A + vapcell H16 + 60º Bead TIR		Luminus SFT40 + 5A cdr 18650 + 15º flat TIR
Mode	Luxes at 29cm (lx)	Candela (cd)	Luxes at 29cm (lx)	Candela (cd)
100%	45000-40000	3785-3364	290000-200000	24389-16820
35%	21000	1766	127000	10680
10%	7500	631	46000	3867
1%	680	57	5200	437
0.1%	Lower than ambient	X	1690	142

I'll test again the SFT40 when I'll get a 8A cdr battery.

Greetings.

 

[Jean-Luc Descarte]

Nice work, Boreack! Welcome to CPF too, I'm sure you'll fit right in with builds like this :clap:

I have no hard numbers like yours — best I can offer is Zeroair's review with adjusted numbers by 10% or so due to CCT differences —, but I've also upgraded an S2+ of mine recently. In my case, I swapped an ugly (extremely high duv) SST20 2700K on a 7135*4 driver for a B35AM 6500K on its bespoke 6V2.2A driver.