How to test pendant light?

Reply

  #1  
Old 02-27-12, 01:46 PM
Member
Thread Starter
Join Date: Oct 2008
Location: Great White North
Posts: 191
How to test pendant light?

One of the pendant lights above my island seems to be a bit flaky, thought it was just the bulb but now believe its a loose connection.

It takes a type GY6.35 12v 50w halogen bulb.

I have a multimeter, but the probes obviously won't fit into the two holes the bulb fits into, how should I use it to test this light? Turn power off at breaker and then insert wire into each hole and use the small alligator clips?
 
Sponsored Links
  #2  
Old 02-27-12, 04:18 PM
Member
Join Date: Feb 2012
Location: USA
Posts: 49
Yep, it will work, but if the extension probe "test" wires are not very close to the O.D. of the bulbs pins, you may be reading a fluctuating voltage from loose test wire pins or bad socket wiring, no way or knowing which. jmo
 
  #3  
Old 02-27-12, 05:19 PM
Forum Topic Moderator
Join Date: Sep 2005
Location: USA
Posts: 4,059
You can also check the connections at the transformer (likely in the ceiling dome). The 12v side is assembled at the factory and could be less than a perfect connection. By disconnecting (and afterward reconnecting with wire nuts), you can also test the transformer directly.
 
  #4  
Old 02-27-12, 05:19 PM
Member
Thread Starter
Join Date: Oct 2008
Location: Great White North
Posts: 191
Ah, good point. How about if I pull the two pins out of a bulb I have that has burnt out? Might be enough to clip onto...

I`ll also check the transformer as suggested and post back tomorrow. Thanks guys!
 
  #5  
Old 02-27-12, 06:11 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 32,636
How about if I pull the two pins out of a bulb I have that has burnt out?
And solder a couple of wires to them. You really also need to test voltage under load also.
 
  #6  
Old 03-17-12, 05:34 PM
Member
Thread Starter
Join Date: Oct 2008
Location: Great White North
Posts: 191
I tested the voltage going into the transformer and it was fine, tested with pins at the other end and got a reading of 0. I've disconnected the transformer and pendant light from the power source, so how do I test the transformer itself?
 
  #7  
Old 03-17-12, 06:15 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 32,636
You test the voltage on the secondary under load. Easiest is to wire to a track. Test voltage at the transformer secondary with no load. Then add a pendant and check again.
 
  #8  
Old 03-17-12, 10:18 PM
Member
Thread Starter
Join Date: Oct 2008
Location: Great White North
Posts: 191
Don't have any track lighting, can I just wire it to an extension cord and test it that way? I'm assuming that I'm testing the 12V side of the transformer?
 
  #9  
Old 03-17-12, 11:29 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 32,636
Sorry confused you with another poster when I suggested the track. Yes connect a plug and cord to the primary and measure the secondary side.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'