As for brightness, the 4W is equivalent to a 25W incandescent bulb. The 6W equal to 35W old-style, and the 8W equal to 48W (note: see the update below). By the way, I calculate switching one 60W old-style to an 800 lumen LED (10W), would save $18.50 in energy each year (assuming 4 hours use per night).
Also, if you've got lamps with small finnecky bulbs that were hard to match in CFL, there are also some LED equivalents for these.
As before, these Aldi sales are limited stock, so if you're reading this in April, don't get your hopes up.
UPDATE: By the time i went on saturday, there were no 10W's left in that store - and only a few 8W and 6W. In terms of brightness, LEDs are improving al the time. While these ones were a big bargain at $10.99, for a bit more money you can get even more efficient ones - like a 5W (400 lumens) to replace a 60W bulb, or a 10W (810 lumen) to replace an old 100W bulb.
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