All posts tagged: Bulbs

Banned in the U.S: Healthy Light Bulbs

Banned in the U.S: Healthy Light Bulbs

In a retrograde move, the U.S. Department of Energy (DOE) has just issued a final rule that, effective June 25, 2028, will firmly cement the dominance of unhealthy blue-pump LED light bulbs. We must reverse this decision before it is too late. There are so many misstatements and flawed analyses in the 110-page notice of April 19, 2024, in the Federal Register that it is hard to know where to begin. But here are some key extracts: “DOE believes at this time that circadian-friendly integrated LED lamps do not possess unique attributes compared to other (GSLs).” (i.e. light bulbs, which they refer to as general service lamps). (p. 28877) This is nonsense. Circadian-friendly light bulbs have distinct spectral power distributions—i.e., the relative amounts of light at each color wavelength. Circadian-friendly lights are rich in 480 nm blue during the day and emit minimal 480 nm blue in the evenings and at night. This can easily be measured with a handheld spectrophotometer. Evidence establishes that circadian-friendly lights should be less than 2 percent 440-495 nm blue …

The best LED light bulbs for 2024

The best LED light bulbs for 2024

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › How many PopSci writers does it take to change an LED lightbulb? Per our own very scientific observations, just two: One to stand on a stool/chair/anything that’s not a ladder, and another to spot and catch the lightbulb changer in case they fall. Our worker’s compensation only goes so far. All jokes aside, LED light bulbs are less of a headache than incandescent and fluorescent ones—seriously. They’re less likely to flicker, not going to buzz or hum, and their brightness varies from bright daylight to soft, warm white. Our favorite part about them? You don’t have to change them every six months or worry about your electric bills going through the roof after accidentally falling asleep with the light on. The best LED light bulbs—such as the ones you’ll find below—are eco-friendly, long-lasting, and come in all sorts of color temperatures. How we chose the best LED light bulbs There are many kinds of lightbulbs in …

Grab these deep discounts on GE CYNC lighting: Bulbs, strips, dimmers, and more

Grab these deep discounts on GE CYNC lighting: Bulbs, strips, dimmers, and more

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › It was dark when I woke up this morning. That’s not some metaphor for how crummy Daylight Savings Time makes me feel. It was still night when my alarm went off. Luckily, good lighting can make the transition into daytime a lot more comfortable. Right now, Amazon has GE CYNC lighting for up to half-off. That includes bulbs, strips, and even dimmer switches if you want to upgrade your entire system. We’re big fans of the GE smart light bulbs and smart light switches, so we’re glad to see them on sale. GE CYNC Smart LED Light Bulbs, Soft White, Bluetooth and Wi-Fi 2 Pack $16.30 (was $24.99) Some smart lights require an extra hardware hub in order to work at all, but these CYNC bulbs connect directly and take orders from an app or a voice assistant like Alexa. In fact, Amazon can link the bulbs to your Alexa before shipping them so they’ll arrive …

New method to recycle rare earths from used fluorescent bulbs

New method to recycle rare earths from used fluorescent bulbs

Discarded fluorescent bulbs have previously been recycled for glass and mercury, but researchers have found that they could also be used to recycle rare earths. Rare earths, a group of 17 metals, are not yet widely available and aren’t easily extracted with existing recycling methods, despite their societal importance. Now, a team of researchers have discovered a new method to collect slightly magnetic particles from spent fluorescent bulbs that contain rare earths. The magnetised chromatography method is detailed in the journal ACS Sustainable Chemistry and Engineering. Challenges with rare earth recycling Because of their unique magnetic, electrical, and optical characteristics, rare earths are used in many modern technologies, such as electric vehicles and microchips. However, untapped deposits of these metals are rare. On top of this, large-scale methods to recycle rare earths from outdated devices are a challenge because the metals are integrated into different components and are only present in small amounts. Rare earths in fluorescent bulbs Mixtures of rare earth-based phosphors, the substances that contribute to a light’s colour, are found in a …

11 Best Smart Bulbs (2024): Lamp Bulbs, Ambient, Color, Etc

11 Best Smart Bulbs (2024): Lamp Bulbs, Ambient, Color, Etc

Remember the allure of the Clapper? No more getting out of bed to hit the light switch! It seemed cutting edge at the time (you can still buy it), but technology has come a long way since then. Now you can control the lights, set timers and schedules, and change colors with your smartphone or your voice if you have a voice assistant—no clapping required. Smart bulbs are a great place to start when creating a smart home. Most options are relatively cheap, they’re easy to install, and they’re something you use everyday already. Plus, there are no cameras or door locks for someone to hack into, and no wiring to mess with. Do you want to try voice controls? Consider getting a smart speaker or smart display, but you can always use the smart bulb’s app. Of the dozens we’ve tested over the years, these are the best smart bulbs. Updated February 2024: We’ve added new testing notes on bulbs from Nanoleaf, Philips Wiz, and Philips Hue. Special offer for Gear readers: Get a …

Best Smart Home Deals: Save on Smart Bulbs, Plugs, Speakers and More

Best Smart Home Deals: Save on Smart Bulbs, Plugs, Speakers and More

$36 at Amazon Daybetter Smart Light Bulbs A19 10-Pack: $36 Save $54 $60 at Amazon ThermoPro TempSpike smart meat thermometer: $60 Save $40 $249 at Google Google Nest Learning Thermostat (3rd gen): $249 each Save $50 when you buy two Show more (9 items) Smart tech is everywhere these days, with plenty of options that can bring more convenience to your daily routine. From robot vacuums to dynamic smart plugs that control appliances and lights from afar, upgrading your home with devices that provide automation and ease is within reach. Trying to build a smart home from scratch may be quite the expense, but there are affordable devices that are accessible for most folks.  There are a ton of options out there, which means it’s easier to find deals. But that can make it a challenge to know which items are worth the investment. We’ve gathered the best smart home offers, with a focus on items we’ve either tested ourselves or that come from top-rated brands. Whether you’re looking for a single smart plug or you want to …