LED maker Cree announced this week that it had achieved a new record in terms of lighting efficiency, harvesting 303 lumens per watt from a white high power LED at room temperature. This ...

We may receive a commission on purchases made from links. Generally, a 100-watt-equivalent LED light bulb is between 10 and 15 watts. 60-watt-equivalent LED bulbs are between 8 and 10 watts ...

Buying a light bulb used to be a no-brainer. Now it's a brain teaser; the transition to more energy-efficient lighting means choosing from a dazzling array of products. We've long identified bulbs ...

That's because traditional incandescent bulbs provide just 15 lumens per watt, according to light bulb manufacturer Philips. By contrast, most LED bulbs will get you 75 lumens per watt ...

A lot of LED makers put phrases like “60-watt equivalent” on the packaging to help consumers, but what watts actually tell you is that when a 60-watt bulb is on for an hour, it’s using 60 ...

A new crop of LED light bulbs wants to combine modern technology ... that make it sound like they're as bright as a normal 60-watt incandescent. And, in a lot of cases, these bulbs don't even ...

That’s because traditional incandescent bulbs provide just 15 lumens per watt, according to light bulb manufacturer Philips. By contrast, most LED bulbs will get you 75 lumens per watt ...

We can picture how bright a 100-watt light bulb is compared to a 60w or 40w one. That's why when you buy LED (light-emitting diode) bulbs, the manufacturers usually show the equivalent wattage ...