View Single Post
  #7   Report Post  
Posted to sci.electronics.repair
major major is offline
external usenet poster
 
Posts: 7
Default voltage of dimmer output not reading same on two different DVM's

On 11/5/20 3:48 AM, Trevor Wilson wrote:
On 5/11/2020 2:00 pm, major wrote:
I am using a 12 V 20 amp lamp dimmer to control some LED lighting.
While my two DVM's show nearly equal input voltage to the dimmer, they
both read separate voltages on the output side.Â* One is reading 9 V
and the other 4 V.Â* I am trying to determine wattage output at various
dimmer settings.Â* Why the different in voltage readings on two
different DVM's and how to remedy?


**Measure the output of the dimmer with a CRO and it may make a lot more
sense.

You talking a scope here or something else? If a scope,
unfortunately, I don't own one.