None. Efficiency experts replace only dark bulbs.
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None. There's a primitive for that.
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What kind of answer did you have in mind?
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You can unscrew a light bulb.
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What? You can change light bulbs?
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It's going to be a dark 4 years, isn't it?
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Three - one to cast the bulb into the outer darkness, and two to catch it when it falls.
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Only one, but she/he'll have to go out and buy the light bulb adaptor card first, which is extra.
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None. They will never find a bulb that burns as brightly as the old one.
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They screw millions of bulbs every day, but when it comes to your bulbs, there's no record.
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