Philips' new 'Ultra Efficient' LED bulbs use 40 percent less energy

LED light bulbs are already supposed to be energy-efficient, but Signifiy thinks it can improve on the formula. The company has released Philips Ultra Efficient LED bulbs that, as the name implies, use 40 percent less energy than the brand's usual LED options. The "advanced" LEDs and optics reduce the yearly energy cost to between 55 cents and $1.03 per bulb, Signify claims. For context, a Philips Ultra Definition 60W bulb uses an estimated 97 cents each year. The new lights might also be helpfu...