FPV Goggles Fan Control Board PCB For Fatshark HD3 HD0 FPV Goggle Cooling Upgrade 10X20Mm 1G Multi-Function Button Modul

Upgrade your goggle cooling with a dedicated 3 speed fan control board at just 1 gram The compact 10 20mm PCB fits neatly inside FATSHARK HD3 HD0 and compatible FPV goggle housings without interfering with existing electronics Three selectable fan speeds let you balance airflow and noise choose low for quiet bench sessions medium for general flying or high for humid race days when fog threatens your vision Operate the fan with a single multi function button short press to toggle on and off double click to cycle through speeds The LED indicator confirms every action solid on when active and flashing 1 2 or 3 times to display the current speed gear No need to remove the goggles no need to navigate OSD menus no need to remember complex button sequences One button Three speeds Instant tactile feedback Retain your last setting automatically with 3 second power off memory The control board remembers whether the fan was on or off and which speed gear was selected before you disconnected power Next time you power up your goggles the fan resumes exactly where you left it no reconfiguration no forgotten settings no fogged lenses on launch because the fan defaulted to off Install in minutes with the standard 10 20mm PCB footprint and straightforward wiring The board accepts power from your goggle s internal supply typically 2S and connects directly to your existing or aftermarket cooling fan Overall dimensions of 23 13 9mm including the button keep the prof