WattmeterHP Photosmart C5280 All-In-One is printer, scanner and copy machine. It is pretty new and I expected it to be resource friendly. First I checked how much energy uses power supply alone, with no printer connected. It was 0.7W. Not bad.
When I connected printer, and after power draw ...
Some time ago I described power consumption of Linksys WRT54GL. Pengagram Cerberus P6369 is cheap router with 4 Ethernet LAN ports and 150 Mbps Wi-Fi (802.11n). This one wasn't mine, so just a quick measurement when on idle router was performed (WAN cable plugged in). The result was ...
Another old networking device. Switch Surecom ep-805sx. I found in some documentation, that power draw for this switch is 2.8W. Wattmeter showed a bit more - 3.4W, but if I recall correctly, at least three ports were used (connected). Pretty much for such a simple device, but... it's ...
Let's take a look on pretty old (but still working!) ink printer. I have HP Deskjet 845c at home, not using color since a long time, but refilling black ink is very easy. And it's nice to have printer at home. But how much energy does it use ...
Cisco SPA922 is one line IP phone. It uses 4.1W of energy when turned on and ready to use. I didn't check how this changes on call, but phones are usualy in standby mode, so this shouldn't matter.
Let's take a look on router Linksys WRT54GL. Powering on only power supply (old type, transformer one) uses 2.5W of power. No router connected yet.
Then I connected two computers over Wi-Fi connection and plugged ethernet cable from my ISP's modem. Energy use increased to 6.9W ...
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