NPR News: Lighting Industry's Future Dims As Efficient LED Bulbs Take Over

Lighting Industry's Future Dims As Efficient LED Bulbs Take Over
More efficient light bulbs are cheaper and longer-lasting than ever. But while that's good for consumers, it can be tough for an industry that's also facing shifting regulations.

Đọc tiếp trên NPR
November 26, 2019 at 04:14AM
Environment