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CDM table lamp

CDM table lamp

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I've had this for a while, but never gotten around to post a picture. This is a 35/39W CDM table lamp. I built it starting with a vapour tight glass fixture with guard, and 'extended' it with a series of box extensions to make (a) a suitable base and (b) a place to house the ballast. Since the lamp holder is in a glass globe, it uses a standard G12 CDM metal halide lamp. The globe guard stands in lieu of a harp to hold the shade. Obviously, the ballast is electronic.

This lamp has no switch so that I remember to unplug it each night because I use it in my place of work. Not sure how the authorities would like to know I have such a home made contraption there, so I keep my mouth shut. It looks enough like a standard table lamp and passes as such to the casual glance, even the head of maintenance has seen it but not a word was spoken about it.

As for its use, other than the obvious reasons a LG member would have, I use it to balance the glare of the overhead troffers that have standard prismatic diffusers and are sort of glary. Since it is a light point at eye level, it balances out better. Plus, if I have to use the LCD projector, it is much more bearable with all lights off and this lamp rather than the projector as the sole source of light.

Note to Lodge : here you have an idea you may "steal" for your living room !

BF777604-A14E-424A-BFFD-51EACB723868.jpeg IMG_0973.JPG IMG_0936A.jpg IMG_6599.jpg

Light Information

Light Information

Manufacturer:Me
Lamp
Lamp Type:35/39 watt CDM-T G12
Fixture
Ballast Type:Electronic LF
Socket Type:G12
Location:My place of work
Electrical
Wattage:35/39W plus ballast losses
Voltage:120 V
Optical
Color Temperature:3000K at the moment, sometimes 4200K if I feel like it
Color Rendering Index:At least 80

File information

File information

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Filename:IMG_0973.JPG
Album name:sol / Various
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Keywords:Lanterns
File Size:237 KB
Date added:Nov 19, 2017
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Date Time:2017:11:19 14:57:54
DateTime Original:2017:11:17 11:18:46
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Comments
rjluna2
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Robert


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Nov 19, 2017 at 01:46 PM Author: rjluna2
You are not the only person who converted to MH table lamp

Here's mine posted at Table Lamp with 100W Metal Halide Lamp and Gear

Pretty, please no more Chinese failure.

HomeBrewLamps
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SodiumVapor 105843202020668111118 UCpGClK_9OH8N4QkD1fp-jNw majorpayne1226
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Dec 20, 2017 at 12:11 AM Author: HomeBrewLamps
never heard of box extenders... these would make my life a hella easier...

~Owen

Mercury Vapor LampHigh Pressure Sodium Scavenger, Urban Explorer, Lighting Enthusiast and Creator of homebrewlamps Cool High Pressure SodiumMercury Vapor Lamp

sol
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Dec 20, 2017 at 04:35 AM Author: sol
In Canada (and I assume in the US too) they are available at Home Depot. They are only 4-5 dollars each. I know Mike (streetlight98) has used some for a mini highbay fixture he built. That's where I got the idea, only I went to town with it ! There are seven of them on this lamp.
sol
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May 24, 2018 at 07:56 PM Author: sol

You are not the only person who converted to MH table lamp

Here's mine posted at Table Lamp with 100W Metal Halide Lamp and Gear


Yes, you have a nice setup. It was sort of an inspiration for this. However, this particular lamp wasn't converted ; it was built as a MH table lamp. The shade, however, is a standard issue from Home Depot.
socketgeek63
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TheDennisManNetwork photoelectric4863
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May 25, 2018 at 02:01 AM Author: socketgeek63
Very nice! That looks very robust for your lamp base it’s the stack of outdoor box extenders.

Long live the great old 20th century quality in electrical & lighting products!

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