It depends on the cap you own. All Capillus laser therapy models manufactured after September 2017 have the ability to deliver continuous wave laser energy, which means the lasers are always on during the treatment. Continuous wave models are to be worn 6 minutes every day.
Capillus laser therapy caps models manufactured prior to September 2017 deliver only pulsed wave laser energy, which means the lasers blink on and off throughout the treatment. Pulsed wave models are to be worn 30 minutes on alternating days.
Both types of model deliver equivalent energy over a weekly period but vary on how that energy is delivered among the treatments.