太陽光と照明の科学
liproが発信する、光と暮らしの知識

The Longest Night of the Year | How to Spend Your Evenings during the Winter Solstice
The winter solstice in December marks the shortest day and longest night of the year. During this extended period of darkness, why not consider how you use light from evening un...

Light to Support Students Through the Night | Lighting Environments Conducive to Study and Eye Care
For students studying late into the night during exam season, the lighting environment plays a crucial role...

Reviewing Lighting Lifespan and Replacement Signs During Your Annual Deep Clean
The year-end deep cleaning is a good opportunity to check the lighting fixtures on your ceiling, which you ...

Estimated lifespan and replacement timing for LED ceiling lights
Unlike fluorescent lights, LED ceiling lights are not a "current" replacement, but rather the entire unit h...

How to Choose Living Room Lighting | Light and Color Tuning for the Room Where You Spend Your Day
The living room is a space where you spend various parts of your day, whether eating, relaxing, or working....

Year-End Buying Guide: Don't just choose based on brightness and price
The end of the year is when more people consider replacing their lighting. We'll organize key points to con...

When It Gets Cold, Toward Warmer Light | Changing Color Temperature With the Seasons
In the colder months, the warm glow of incandescent lighting feels particularly cozy. This article introduc...