LED Lights Are Ruining Laundry Detergent's White-Brightening Trick

LED lighting is great. The right bulb gives the same warm incandescent glow you love from a fraction of the energy. But there's a downside: while LEDs make cities look awesome , the most common type of LED lighting dims the ultraviolet trick laundry detergents use to make white clothes look whiter. The future is bright, but it's also kind of dingy.