I searched and found some mention of ramping the light up and down
you can ramp an HDS during the customization of a preset
but HDS exits ramping automatically after 10 seconds.. it will not stay in ramping mode indefinitely like the D4.
the HDS ramping is designed to give you access to the 24 modes, so you can choose 4 of them as presets. Some people leave their light in Programming mode, and when they want to change a preset, they customize its level on the fly.
For example, the lowest level on an HDS is 0.02 lumens. You can assign a preset to that level. This could be useful when going into a movie theater. But once you exit the dark theater, they might want to reset that lowest preset to a different lumen level, for example 5 lumens (Level 14 or 15 depending on model)
during customization, the User would ramp from the level 1 to the level 15 (or vice versa), and then save that level as one of the 4 presets. Most users will just save the lowest level they want to one of the 4 presets, and set other levels to the other presets.
Next you will probably want to know what the factory presets are. I do not think anybody knows (I double dog Dare somebody to post the correct answer), but you could figure it out by entering programming mode and looking for the double flash that indicates what the preset level is, during customization.
https://www.hdssystems.com/Products/EdcClickyAdvUsersGuide.pdf
"
Follow these steps to customize a brightness preset:
• See Enabling Customization (section 11) to enable customization.
• Turn on your flashlight and select the preset you want to customize.
• Triple-press-hold-release. Your flashlight will display the current brightness level. If the current brightness level is the minimum or maximum level, the displayed level will start with a double-blink.
• Click to move to the next brightness level. Double-click to reverse direction and move to the previous brightness level. The menu is circular – the last item is followed by the first and the first is preceded by the last. When you get to the minimum or maximum level, the displayed level will start with a double-blink.
• Press-and-hold the button to select the current brightness level. Your flashlight will display a dim-to-bright sequence to indicate you are setting the brightness level. Release the button after your flashlight turns off and your flashlight will return to the selected preset with the newly selected brightness level.
• N o t e : your flashlight will exit the Brightness Menu with 5 rapid flashes without changing the preset if an error is detected. Possible errors include entering an unknown command, not entering a command for 10 seconds and not holding the button down until your flashlight turns off when selecting a brightness level."
there is a chart on page 11 that lets you figure out the lumen value of each of the 24 steps:
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