4 ms·

>incandescent light bulbs which are an order of magnitude less efficient than contemporary LED lights.

• LtWorf 2mo ago
  Less efficient but still often having a better output over the frequency spectrum
• hvb2 2mo ago
  The whole point is that we used to assume that maybe 1 kW was sufficient. 6kW or 9kW isn't uncommon anymore, especially when you also use it for heating