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So those are regular old style light bulbs - not particularly bright at 40w - and will use a bit more energy than the LED's. Some argue they look nicer. They'll definitely work with what you have.
What area are the bulbs going to be lighting? Small or large? Do you want bright light everywhere - or a subdued look?
Living room and stairs, I definitely want LED and something efficient
Any LED bulb is going to be more efficient than a halogen or fluorescent. My advice Is do not buy the cheapest LED bulbs you can find, they will be cheap for a reason. a properly designed bulb will last 5-10 years easily, but you will find bulbs that are cheaper and claim to have a higher output, they might, but they will last half the time