We’ve seen that Philips’ dimmable 12.5W 800 lm LED bulb emits light in the same spherical pattern we’ve come to expect from incandescent bulbs. How does it do this? First off, let’s refer back to the ...

Yesterday, a federal ban on production of 40- and 60-watt incandescent bulbs went into effect, forcing consumers to switch to more efficient (if less aesthetically pleasing) bulbs, like LEDs and CFLs.

A recent article examinedlight patterns from commonlighting bulbs andtook apart a Philips LED bulbto understand how its use of a secondaryphosphor affects its light ...

The marketplace for more-or-less normal-looking LED light bulbs became just a little more crowded yesterday, when Philips announced the dimmable 75-watt equivalent version of its SlimStyle bulb. With ...