The display on my Philips EnergyLight shows 3 stripes
It is possible that your Philips EnergyLight display does not show a light bath duration. But don't worry. There is nothing wrong with your EnergyLight.
Distance and time
This indicates that the set distance and light intensity will not yield the positive effects that can be expected if the prescribed combination of distance and time is observed. This may for instance occur if you select too long a distance (60 cm) in combination with a low light intensity.