I got myself a 275nm 50mW LED and wanted to make a fairly simple driver for it
TI TPS61165 used
Used with Klaran WD
Quarz glass window for S2+ needs a bit grinding down
just UVC
17mm in UVA+UVC (17mm2 AMCs; 20,21,22mm up to 4 AMCs)
I have here shunts for different currents
1R0 200mA
0R51 392mA
0R4 500mA
0R33 606mA
Prices
17-21mm are available with BLF Firmware Bistro (tail clicky) or NarsilM/Anduril (momentary side switch)
11€ per driver just UVC
11.5€ per driver UVA+UVC
per loose BLF spring add 0.4€
per short spring 0.25€
springs can be soldered, but stiff long spring adds 1.5€ for shipping Outside EU; inside EU 2€
silicone cable can be added and soldered for 0.1-0.175€ per inch
Bistro, NarsilM, Anduril can be customized mode spacing adds 1-2€ depending on how many groups or ramping table you want changed
Shipping:
2€ envelope priority air mail shipping worldwide
4€ for optional tracking insurance up to 25€
Soldered long phosphor bronze springs are possible, but it adds about 2.5€ shipping costs
per full 100€ additional insurance 2€
1.3€ Germany
adds 2.8€ for signed tracking + insurance up to 25€
connection on drivers