In most cases ‘for smaller bedrooms, aim for 1500 – 2500 lumens ... ‘if you have colour-changing LED lights, red and amber are thought to be best for bedtime as they can stimulate melatonin ...
“Nowadays, bedroom lights can be set to come up gradually in the morning and dimmed in the evening to resemble a day/night cycle.” Smart LED bulbs connect to an app or home assistants like ...