The product description says 2500 lumens, which seems too good to be true. 2500 lm / 40w would be 62.5lm/w which is over 9% luminous efficacy which I think is unrealistic for an incandescent bulb I bought a pair anyway as they were cheap and they aren't particularly bright Packaging says 288 lumens at 120v which is just over 1% light output I will probably return them and buy LED bulbs instead.
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