Nice video for showing how easy it can be. Thanks for sharing.
It was intentional on Lexel’s part. I believe it was a group decision that it would be a nice feature for the number of 7135 regulator chips powering the LED’s on the LT1 be configurable. Each chip provides 350mA of current. 3 of them on each channel are inaccessible to the user and always connected (maximum driver current can be limited to 1050 mA).
2 more are accessible and come pre-bridged from the factory (default maximum driver current is 1750 mA) with either a solder blob or a small resistor. Those can be removed if desired. Although it may seem undesirable to limit the maximum brightness, it also reduces the minimum brightness so you can have a lower moonlight mode, and should very slightly improve the efficiency.
Or the remaining 2 can also be bridged by the user to take the maximum driver current up to 2450 mA. That is what is being shown in this video.
The normal method is to bridge the pads with solder, but because these pads only need to power the signal pin on the 7135 regulator chip, the power level is very low, and ordinary pencil graphite should be conductive enough to work. Note that the graphite for mechanical pencils has wax or plastic in it as a binder for extra strength, and is generally not conductive enough to work.
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