Flat LED gets Energy Star certification, now qualifies for rebates in most states

So far, most other LEDs have stayed pretty close to the rounded shape of a traditional incandescent lightbulb. This creates a challenge because, while LEDs produce a lot less heat than incandescents, they are also a lot less heat-resistant, so a way to efficiently dissipate heat was needed. This usually meant metal heatsinks that added a lot of weight and cost to LED lightbulbs, but Philips thought out-of-the-box and came up with a flat-shaped LED bulb that basically increases the surface area for heat to dissipate while keeping individual LEDs (see below) away from each other. This genius move means that you don't need a metal heatsink, which brings costs down...