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 Our projector currently offers two ways to adjust the brightness: manual adjustment and automatic adjustment. You can choose the method that best suits your needs:

1. Manual Brightness Adjustment:

Go to Settings > Display & Sound > Picture > Brightness.

2. Automatic Brightness Adjustment:

Go to Settings > Display & Sound > Picture > Ambient Light Adaptation

If the above solutions cannot solve your issue, please contact Nebula Customer Support at support@seenebula.com for further assistance.