AMUTORCH TORCH E3 & E4 will be upgraded soon, what colors or functions are you looking forward to? Your comments and suggestions will be greatly appreciated.
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E3S with Anduril and Aux lights would be cool 
SST20 4000K would be good to see again as an option. Get some 219B.
More purple lights
Purple or a bright Orange finish
Silvery teal anodizing, usually referred to as 青色
Let me chime in. Have the YooToos SD1, 2, &3.
1- Remove/replace the standard washer in the tail switch. If used for shim, correct the design in future models.
2- Reversible battery tube with provision for a pocket clip – can then be used head-up or down.
3- Driver cavity to be increased to at least 6mm. This is because of #4.
4- Use proper high-efficiency driver, not series resistor V drop. If the cavity is deeper, we could change the driver.
5- Use AR glass, or at least high transmittance. The lens produces ringed artifacts. Also, design for 1.5 to 2mm thick, not 1mm. Too fragile.
7- What’s with the chalkboard unridged/smooth (unknurled) anodized finish? Not very grippy nor pleasant to hold in hand.
8- Replace all ‘O’ rings from silicone to Butyl N, the standard. And design with proper sizes, not the overly small thickness diameter that tears too easily.
I for one care little for your lights – just screams “cheap” economical design. Do not put me down in your “giveaway”.
BTW, look about your competitors. They have better selection of emitters and are going forward with better UIs. Lacklustre thought in making those 3 lights at low outputs and the latter 2 with the same SST40.
For upgrading the E3S, add more colours: including banana leaf green (bright yellowish green), and silvery colour; and keep the price below US$30. 
For upgrading the E4, add a new copper body.
I never actually had a AMUTORCH before, but having lighted button would be great.
For the E3S, I think the main thing I missed was a shortcut to moonlight from off.
Having the stepped and ramped modes available at the same time is a unique experience, but it might be more useful to put them into separate mode groups (that the user can switch between) so there are more interactions available to use for shortcuts.
Shortcut to moonlight mode from off is a MUST
I’d love to see standard Carclo optic with AR coated glass lens in E3S/E3. Also, purple E3 with Anduril. Someone around here has even designed the driver for you 
More lumens, less heat, good tint, pocketable and good UI, preferably updateable via Firmware update through USB C port.
And it has to look good ofcourse
+1 “E3S with Anduril and Aux lights would be cool.”
I believe Tom E had an Anduril board developed (was hoping to get my hands on one)
Orange or deep red annodize, or even a Special edition Copper and Titanium! Also use Anduril UI
A red like this
Both of them may be upgraded to a titanium body.
Bold colors are always nice. Also anduril UI would be a bonus.
The SD2 is compact for a 21700 light, but is still quite good at dissipating heat.
I’d like to see compact lights in bold colors, more efficient drivers, better UI and high CRI emitters.
I second this. :heart_eyes: It is way to rare as a flashlight color.
Maybe also some sort of gold or sand color. The E4 would be nice in aluminium and copper, too.
The button covers should be white or transparent with some aux leds behind. Aux leds would look great also behind the optics.
Anduril is a nice firmware but if you don’t want it you should improve your firmware with a lower moonlight mode and a bit more evenly spaced modes. Four or five modes are perfect if there is also a fairly low mode and maybe a very low moonlight mode.
Better prices
I'd like a khaki, sand, slate blue,dark brown or a deep army green / matte finishes . More classy ,deeper rich colors .
A glossy red would be amazing!