For those who don't like to read all specs, here is a very short description of LD-4 and ILC-1:
LD-x4 drivers
New version of CC linear driver, several differences compared to LD-3 driver:
- single cell only (for now)
- ability to choose moonlight current via UI (2.5, 5.0, 7.5mA) (no need to solder any additional parts)
- 1-wire NTC support - only one wire connection is needed for proper ext. OTP function, which simplifies build (especially with MOSLED MCPCBs)
- Illuminated tailcap support with only 1mA bleeding - LD-x4 mode memory is not affected by adding illuminated tailcap, no need for annoying resistor-tailcap-LED matching
- "Hardware" Direct Drive mode on high option - LD-x4 has real DD mode on high,and it's identical to DD drivers, so there is no current limit in that mode (LD-3 had some current limits)
- Single side PCB with big spring pad and slighlty bigger LED wire holes - easy placement of big springs and spring bypass, easier wire soldering
- Some functions are changed in UI (removed bike strobe, added 2x-3x click shortcut to high mode)
- New, more powerful low-power microcontroller
- LD-B4 variant doesn't have MOSFET on driver PCB, it has two contacts(GATE-mandatory, and optional for moonlight) for external MOSFET connection - MOSFET on MCPCB can dissipate a lot more heat than MOSFET on driver's PCB, simply because thermal resistance is much lower -one of major complaint about LD-3 was limited power dissipation; with LD-B4 that problem is solved, so triple and quad builds are now very easy, and with new generation of LEDs with low Vf, constant current regulation becomes a basic necessity, not an extra feature
- Lead-free
ILC-1 illuminated tailcap module/drop-in
- New product, which makes illuminated tailcap build very fast and easy, ILC-1 is a "plug&play" solution, works with LD-x4 drivers, but it will also work with any driver with installed 300-500Ohm bleeder (effects on mode memory for other drivers are same as classical ill. tailcap builds)
- ILC-1 is designed for Convoy hosts, if there is enough interest my plan is to make version for EE X6 lights.
- ILC-1 has integrated genuine OMTEN 1288 switch
- ILC-1 has 8 LEDs and 2 channels, each channel drives 4 LEDs in parallel, each channel is real constant current souce, so LEDs are driven with constant current which gives constant brightness,not affected by battery voltage and temperature variations
- Current on each channel can be set via single 0603 resistor
- ILC-1 has LVP, which means it will shut down tailcap LEDs when battery voltage drops<3V, and this way protect battery from over-discharge