Slowly but surely, LED light bulbs have been getting brighter and more efficient, but price has always been a major factor staying their adoption. Back in 2007, a single 308 lumen bulb cost $65, and the more things changed, the more they've stayed the same. Now, out of the blue, The Home Depot has stepped forward with a cost-effective alternative. For $20, the new EcoSmart LED bulb promises a 429 lumen, 40W equivalent with a 50,000 hour expected lifetime, making it cheaper and nearly as powerful as the 450 lumen, $40-50 design industry heavyweight GE unveiled last month. Best of all, it's already available for purchase (though backordered) at our source link. Honestly, we're starting to wonder what the catch is. PR after the break.