
I ordered these Edison bulbs to replace equivalent 60w Edison bulbs. If a clear glass fixture requires 2 or 3 bulbs, they will provide enough light without being blindingly bright (60W for example). I only put them in so I can't speak to energy efficiency. I would like to warn you that this longer drop lamp did not work in fixtures that required vertical lamps instead of horizontal lamps. I had to buy a classic Edison A-shape bulb for vertical fixtures because the teardrop-shaped bulbs either touched the closed glass shade or were longer than the glass shade (thin bulb sticking out from under the glass shade).

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