Home device power use: Difference between revisions
Jump to navigation
Jump to search
m (→Computers) |
|||
| Line 342: | Line 342: | ||
Amplifiers tend to use oldschool transformers instead of switch-mode power. | Amplifiers tend to use oldschool transformers instead of switch-mode power. | ||
This is a great way to avoid noise from the power supply that switch-mode might easily introduce, but also makes it harder to push down the baseline power use. | This is a great way to avoid noise from the power supply that switch-mode might easily introduce, | ||
but also makes it harder to push down the baseline power use. | |||
Assume that it ''might'' be using 15-35W just for being powered on, making no sound. | Assume that it ''might'' be using 15-35W just for being powered on, making no sound. | ||
It' | |||
It'll go up when actually making sound, but people overestimate how much - in a small to moderate room, 20W to 30W of sound is ''loud''. | |||
It's often better, but if you're squeezing down on power use, measure it. | |||
I've found that modern receivers that have use 20W just in their "just a red LED" standby mode -- what ''you'' would probably consider off. | |||
--> | --> | ||
Revision as of 14:41, 28 November 2023
Computers
tl;dr:
- Assume 40W or more for laptops, idling at 10W with things dialed down
- 150W or more for desktops, idling at 100W (can be much less, if specialized)
- counting basic monitors (larger and brighter may add mode)
Both are fairly approximate