|
|
|
|
|
|
by sp332
3976 days ago
|
|
|
Incandescent bulbs are usually 60W but can be 40W for a reading lamp or 100W to light up a whole room. Those haven't been sold in most countries for a while now due to their extreme inefficiency, but other bulb types are often compared to a similar incandescent bulb. For example a 14W fluorescent bulb might say "60W equivalent". Watt-hours really are as simple as they sound. A 14W bulb that's on for an hour used 14 Watt-hours. |
|
|