C9 LED against C9 incandescent: watts per line, how many lines a circuit carries, and what a season of evenings costs to run.
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An incandescent C9 pulls about 7 watts; the LED version pulls a tenth of that. Across 400 bulbs and 40 evenings, that's circuits saved and a real dollar figure — the lab does the math both ways.
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<iframe src="https://getcrewplate.com/embed?trade=lights&tool=bulbs" width="100%" height="1150" style="border:1px solid #CBD5E1;border-radius:10px" loading="lazy" title="Bulb lab"></iframe> <p style="font:12px/1.5 system-ui;color:#64748B;margin:6px 0 0">Calculator by <a href="https://getcrewplate.com/free-tools">Crewplate</a> — 26 free trade calculators</p>