Noted. Using my Luminette before breakfast affected my sleep-quality more than using it throughout the day.
For anyone interested: I've compiled 8 years of experiments with bright light therapy devices here:
For every 30 minutes of sun exposure before 10am, you fall asleep 20 minutes earlier at night and sleep quality is significantly improved ☀️ 🌑 💤 t.co/ImjZRmjnFJ