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I like the chandelier, is it possible to have all three bulbs on at the same time?
Probably yes, although a lot of cheapskates will unscrew some of them when not in use to save energy.
I don't think bulbs use a whole lot of energy these days. A 10W LED bulb would cost $14 per year to run constantly (US pricing). An old 60W bulb would be $83 per year in comparison.
But there's probably no reasoning with someone who decorated that room.
Math:
LED bulb power = 10W
Electricity cost in US = $0.161 per kWh
Running 1 bulb 24 hrs a day = 0.24kWh
Price per day = $0.038
Price per year = $14, running 1 bulb constantly
Huh, that's actually more expensive than I'd have thought for a single bulb, even taking into account that you'd probably only be running it for a quarter of the time