Garmin GI275 Night Flying and Brightness

[MisfitSELF]

Just got two GI275 installed but only have about and hour or two at night with them.  What I've noticed is that they are incredibly bright and I have had to manually reduce the brightness of each manually.  Once I do that, the rhestat panel light adjustments seem to work but they behave in a very non-linear manner.  For instance I bump the knob and one (the ADI will go VERY dim, the other will be barely change.  I bump it back a hair and the ADI will go VERY bright.  Also it seems very sensitive to ambient light, for instance from the flood lights.

I feel like there's a sweet spot to set these up for night flight but I haven't found it yet.

Anybody have night flying experience with their GI275's and have similar experiences?

Thanks

Bruce

[aviatoreb]

14 minutes ago, MisfitSELF said:

Just got two GI275 installed but only have about and hour or two at night with them.  What I've noticed is that they are incredibly bright and I have had to manually reduce the brightness of each manually.  Once I do that, the rhestat panel light adjustments seem to work but they behave in a very non-linear manner.  For instance I bump the knob and one (the ADI will go VERY dim, the other will be barely change.  I bump it back a hair and the ADI will go VERY bright.  Also it seems very sensitive to ambient light, for instance from the flood lights.

I feel like there's a sweet spot to set these up for night flight but I haven't found it yet.

Anybody have night flying experience with their GI275's and have similar experiences?

Thanks

Bruce

I'm going in for a dual GI275 in two weeks.

Reading all these comments with great interest.

Please do send your comments to Garmin since I bet they will respond to multiple such feedback with version updates to make this easier.

[flyboy0681]

My -275 ADI install should be finished by this time next week. I too will be reading contributions as they come in.

[carusoam]

7 hours ago, aviatoreb said:

I'm going in for a dual GI275 in two weeks.

Reading all these comments with great interest.

Please do send your comments to Garmin since I bet they will respond to multiple such feedback with version updates to make this easier.

Interesting idea for @KLudwick to know about...

Best regards,

-a-

[Nukemzzz]

Just throwing an idea out there...could it be that the 275 needs PWM dimming instead of voltage (rheostat) dimming controls? I have two Led post lights in my dash light circuit.  Their response is very non linear and they flame out after a quarter turn Down.