Cree already advertises an LED lamp it says reaches 200 lumens per watt under some circumstances.

NPR: Goodbye Fluorescent Bulb? Philips Says Yes.

We also checked out the locally focused BKLYN Designs show, where design duo Bower unveiled an awesome magnetic LED lamp, made from discarded pieces of scrap wood.

ENGADGET

Soraa, a venture capital-backed startup, decided to tackle this market first with the Tuesday launch of its first-ever LED lamp, which it says offers brighter, warmer and more focused light for showcasing any merchandise.

FORBES: Startup Soraa Launches LED Light For Shops, Museums

In other news, energy-efficient lighting advanced by leaps and bounds this week as we flipped the switch on IKEA's new solar-powered Solvinden lamp and we spotted a crystalline "Stardust" LED lamp made from sugar at the Milan Furniture Fair.

ENGADGET: Inhabitat's Week in Green: sugar-covered lamps, IKEA's solar lamp, and the 30MPH all-wood racing bike

Just a few weeks ago management approved an LED tail lamp for the 2011 Grand Cherokee.

FORBES: Companies, People, Ideas

Today, there is a wide range of LED bulbs available at IKEA that enable customers to easily change old incandescent bulbs to LED without changing the lamp base.

ENGADGET: Ikea to sell only LED-based lighting by 2016, wants to be greener than your sofa bed

Although each step produces only enough electricity to keep an LED-powered street lamp lit for 30 seconds, Kemball-Cook says that the tiles are a real-world "crowdsourcing" application, harnessing small contributions from a large number of individuals.

CNN: Green sidewalk makes electricity -- one footstep at a time

Then, DallePezze, you hit them with the savings, which, roughly are this: An LED standard light bulb versus an incandescent one will save up to 80% of energy or 50 cents per lamp a year.

FORBES: Selling an Energy-Efficient Light Bulb Is Trickier Than You'd Think