Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

673 posts

Ultimate Geek
+1 received by user: 81

Lifetime subscriber

Topic # 199174 7-Aug-2016 15:56
Send private message

I have a toilet at the end of a dark L shaped hallway and have put a dimmed LED lamp in the room.


The lamp is a 230v 5w dimmable bulb... (No brand name from Aliexpress)


I have put 100nF X2 capacitor is series with the bulb.


What power with the lamp draw in this dimmed mode?


I guess I could do a calculation on the assumption that the bulb is a 5W resistor equivalent.


Do household energy meters record resistive or reactive loads?




Create new topic
21832 posts

Uber Geek
+1 received by user: 4570


  Reply # 1605962 7-Aug-2016 16:25
Send private message

Household power meters are just measuring real power, so the apparant power is meaningless.


If capacitors dimmed the lamp then it is probably already just a capacitive dropper inside it, so it would already be an almost totally capacitive load. considering it a 5w resistive load would be way off the mark.


In anycase, it will be so low as to not be worth worrying about.


Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.