太陽光と照明の科学
liproが発信する、光と暮らしの知識
What is Full Spectrum? | Differences in Spectral Distribution from Three-Wavelength and Fluorescent Lamps
The term "full spectrum" is becoming more common. It refers to light with a continuous spectral distribution similar to sunlight. This article will clearly explain the differenc...
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 might not...
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 has a lifespan. We...
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 consider, not...
What is Color Temperature? | How to Read Kelvin (K) and Choose by Room
Do you know what the numbers "3000K" and "5000K" on lighting packages mean? We'll clearly explain the basics of color...
Reading Week: Considering the Brightness and Color Temperature of a Room That Makes Books Easy to Read
With Reading Week starting at the end of October, why not consider lighting for a room that makes reading easier?...
6-mat or 8-mat? | Choosing the Right Mat Size and Dimming
When choosing a ceiling light, you're faced with the question, "How many tatami mats is it for?" This article explains...