Driven by climate policy, the U.S. Department of Energy favors only blue-pump LED light bulbs after July 2028.
In a retrograde move, the U.S. Department of Energy has issued a final rule that, effective June 25 2028,, will firmly cement the dominance of unhealthy blue-pump LED light bulbs. Evidence establishes that circadian-friendly lights should less than 2% 440-495 nm blue in the evening and at night, and more than 20% 440-495 nm blue during the daytime.
Blue-enriched light in the evening phase delays the circadian system more than blue-depleted light at the same intensity. “The adopted standards, which are expressed in minimum lumens output per watt of a lamp or lamp efficacy , ... These standards apply to all products .. manufactured in, or imported into, the United States starting on July 25, 2028.”
پاکستان تازہ ترین خبریں, پاکستان عنوانات
Similar News:آپ اس سے ملتی جلتی خبریں بھی پڑھ سکتے ہیں جو ہم نے دوسرے خبروں کے ذرائع سے جمع کی ہیں۔
ذریعہ: cleantechnica - 🏆 565. / 51 مزید پڑھ »
ذریعہ: dcexaminer - 🏆 6. / 94 مزید پڑھ »
ذریعہ: cleantechnica - 🏆 565. / 51 مزید پڑھ »
ذریعہ: cleantechnica - 🏆 565. / 51 مزید پڑھ »