I have seen you write about how LED replacement bulbs are not legal. Recently, I have been seeing ads for Sylvania LED replacements. What gives?

Amazon’s Presidents Day sale is up and running, offering tons of opportunities to save on outdoor gear like portable ...

I measured the performance of each LED in lux using a digital light meter. I set each bulb to its coolest white light color temperature, used a measuring tape to consistently hold the meter 12 ...

lounging on couches or in beds while wearing serial-killer-style face masks with colorful lights emanating from beneath them. Typically referred to as light therapy or LED face masks, these ...