3 ms·
thanx for downvotes, blind consumers. or check your favorite information sources about the second resistor and about how much lm/w gives 30%-ed lamp related to
by eimrine 2mo ago
thanx for downvotes, blind consumers. or check your favorite information sources about the second resistor and about how much lm/w gives 30%-ed lamp related to a 100%-ed one otherways.
- quietbritishjim 2mo agoProbably the down votes are from people who have no idea what you're going on about, or what it's got to do with an article entirely about the early history of incandescent bulbs.