Gallery of Lights


Home Login
Album list Last uploads Last comments Most viewed Top rated My Favorites Search
Home > User galleries > Vince > HID lamps and ballasts
Return to the thumbnail page FILE 16/49 Return to start See previous file See next file Skip to end
GE H100DX38-4 mercury lamp. Here's the oldest lamp of a lot of ten 100W mercury vapour lamps I won on eBay recently. I'm not sure if this lamp was made in the late 60s or late 70s, anyone knows? This is a pic from the eBay seller BTW, credits go to him. Keywords: Lamps

GE H100DX38-4 mercury lamp.

Here's the oldest lamp of a lot of ten 100W mercury vapour lamps I won on eBay recently. I'm not sure if this lamp was made in the late 60s or late 70s, anyone knows?

This is a pic from the eBay seller BTW, credits go to him.

100_1118.jpg Westy_H38-4JA-W_corrected.JPG 563089424_o.jpg 100_1109.jpg SYL_H33GL-T400-DX.JPG
File information
Filename:563089424_o.jpg
Album name:Vince / HID lamps and ballasts
Keywords:Lamps
Filesize:67 KiB
Date added:Apr 21, 2012
Dimensions:1280 x 960 pixels
Displayed:164 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=11476
Favorites:Add to Favorites

Comment 1 to 11 of 11
Page: 1

NiMo   [Aug 14, 2013 at 12:09 AM]
GE redid their mercury/metal halide ordering codes in 1980. All standard lamps now include the "R" in the prefix (HR/MVR). Saf-T-Gard lamps are still HT/MVT.
streetlight98   [Aug 14, 2013 at 12:25 AM]
when did they redo the etch? i don't think they still use this etch. isn't this the bonusline etch (but without the designation)?
NiMo   [Aug 14, 2013 at 02:31 AM]
GE changed the etch somewhere in the late 80s.
streetlight98   [Aug 14, 2013 at 03:12 AM]
Ahh. I sort of miss the old GENERAL (GE) ELECTRIC etch but i guess it was time to "retire the relics" lol.
joe_347V   [Aug 14, 2013 at 08:34 PM]
I guess GE thought the etch was a bit outdated Razz
Hanging Light   [Aug 15, 2013 at 04:43 AM]
83? Does GE put the year on they're bulbs?
joe_347V   [Aug 15, 2013 at 06:22 AM]
Probably not, the 83 is most likely a date code. Most bulb makers had their own date code system and it sometimes even varied between the type of bulbs made.

Some newer bulbs like Philips have the actual date stamped on the lamp sleeve though.
GEsoftwhite100watts   [Aug 15, 2013 at 06:52 PM]
I was given a 400w Philips MH lamp awhile back that has APRIL 25 2005 on the sleeve...it was NOS until I fired it...I've fired it a few times and put maybe 3-4 hours on it...
joe_347V   [Aug 15, 2013 at 10:48 PM]
Some of the Sylvania mercs had a date on the sleeve too. Those were made by Philips for Sylvania during the early-mid 2000s. I've seen a pic of a Philips T5 with the date and time stamped on the endcap too.
streetlight98   [Aug 17, 2013 at 03:15 PM]
yeah i think Philips made some of Sylvania lamps until Sylvania decided to start making chinese MV lamps (are the HPS and MH and PSMH lamps made in china too?)
joe_347V   [Aug 17, 2013 at 07:44 PM]
IIRC, the mogul based Sylvania HPS and MH lamps are USA made while the medium based HPS are from Mexico. Not sure about the medium based MH since I'll have to check mine.

Comment 1 to 11 of 11
Page: 1
Powered by Coppermine Photo Gallery