With Light Fair 2010 next week, there’s a lot of lighting innovation in the pipeline. Take for instance this news we received from the Lighting Science Group. They’ve developed new LED lighting — referred to as the Definity LED line — which they say is rigorously tested and relatively affordable. The lights contain no mercury and are recyclable, dimmable, and long-lasting.
Older homes frequently aren't very energy efficient because power used to be extremely cheap and building codes varied widely. In mild climates, that tended to happen even more. Our home in Oakland was built in 1948 and was far from energy efficient when we bought it: single-pane windows and doors, some of which didn't close well; original floor furnace; no insulation in the ceiling or walls; drafty fireplace.
Seems like the old incandescent business is on its last legs these days. I’m reading news from GE to mean that they’ve come up with an expensive silver bullet for screw-in home lighting. Due to hit shelves this fall or early 2011, the GE Energy Smart LED replaces 40-watt general service incandescent bulbs with nine watts of consumption, 450 lumens of light, and 25,000 hours of rated life.