Nothing fancy. I recently received the Sofrin C01R and found that the low mode was not low enough.
And I got a bit restless of waiting for the presentation of the Sofirn C01 host.
Then I read THIS review of the Nicron N1 and tried my luck on Ebay.
To my big surprise it did not take long to get to my doorstep.
I have a some 5mm leds from disassembling all kinds of electronics, I think this came out of a PC.
So I don’t know make or model of the led, just that it was a clear one, and that it emitted red light.
The mod was easy (following the link). I used a pencil with attached eraser to push led+board out.
The results.
From left to right: Manker Boney, Nicron N1 with red 5mm instrument led, Sunwayman R01A
This red light is very nice for getting in and out of bed without disturbing your next of kin too much.
Effective reach is about 1.5m (6tf), which is enough to maneuver around safely in a familiar room.