Many experts say that stark white lights can help increase focus and make you pay more attention to work, and they're better for your eyes. But the downside to the bright white lights is that you're always on high alert - meaning they're not so good for creating feelings related to serenity. Warm, gentle lights are the way to go if you want a cosy feel.
For most rooms, LED bulbs with a soft yellow tinge work perfectly. Table or floor lights with plain shades can add a nice glow for the evenings. If you get plenty of sunlight during the day, go for thin curtains to keep your home bright.