Wombles
LIFE MEMBER
The old monochrome version did have a manual brightness adjustment but the later ones don't have this. On the current Solar Colour monitors there is some adjustment (two levels) which is automatic - in low light or darkness it dims to prevent dazzle but instantly becomes brighter in sunlight. Can test it by positioning it in a sunny spot then put your hand over the solar panel & the display should dim.Been on charge all day, the display is still pretty dim. I have dropped TyrePal an email to ask if there is a way to improve the brightness.