Date Code 2K. "Arabic Numeral First" = Dacade from 1990 to 1999. "2" = 1992.
"K" = October (Count along alphabet, omitting the letter "I")
"Pacman" symbol. NORELCO/Philips plant on London, Ontario, Canada.
If you can find another like it, I'd like to swap it for something similar from our Geographical realm. Our "T" shaped "Softones" were made in Sidorjo, Surabaya, Indonesia. This plant uses a "greater than", or "V" on its side with apex pointing to the right, symbol.
Other "Pacmans" do exist...
Lower Left Quadrant Missing, Bamberg, Germany
Lower Right Quadrant Missing, London, Ontario
Upper Right Quadrant Missing, Karachi, Pakistan
Upper Left Quadrant Missing, Inchon, South Korea
It is highly unlikely that, if you live in the U.S. or Canada, you will ever see any lamps from outside of your geographical realm, so it is unlikely you will ever see these other symbols unless you go to these countries and do some collecting there or trade with a collector already there.
In the North American realm you are most likely to see, (Only on Philips branded G.L.S. lamps)....
"Broad Arrow" pointing left, Lynn, Massachusetts (champion Lamps)
"Broad Arrow" Pointing Upward, Fairmont Virginia (Westinghouse)
"T".........................., Bellville New Jersey (Westinghouse)
"Upsidedown Equalaterl Triangle" Hightstown New Jersey (Norelco/Radiant)
"Circle with diagonal "X"" Richmond Kentucky (Westinghouse)
"Equalatrel Triangle with Horiz Line Pointing Right" Little Rock Arkansas (Westinghouse)
"Same as above but pointing Left" Owensbro Kentucky (Westinghouse)
"T on its side, top on right", Warren Ohio (Nalco)
"Semi Circle with Horiz line, Curve Left" Cleveland Ohio, (G.E. Complexes)
One thing that is quite difficult to come to grips with, particularly for younger collectors is the BRAND, the COMPANY and the MANUFACTURER are not always the same. The manufacturer is the factory or plant.
Companies, the organizations with the rescources and capital to run plants and market lamps and buy, sell, move, open new or shut down old factories/plants. The brand is just a psychological identifier, it is often the same as the Company, but not necessarily so. A different brand does not necessarily mean a different plant.
A very expierenced lamp collector can tell the plant a lamp comes from for about 50% of lamps because the production team at that plant leave their "personality" on the product.
This lamp here is
BRANDED .................... Philips
MANUFACTURED AT .............London, Ontario Plant once operated by Norelco
COMPANY RESPONSIBLE .........Philips Ltd.
In every different country, when a company registers itself with the Government of that Country, the mane gets an extension, often peculiar to that Country's laws and ways, for example....
In Holland/Netherlands, the Home Country of Philips, it is registered with the Dutch Government as "N.V. Philips".
In England it is ......"Philips Pty. Ltd."
In Germany it is ......"Philips GmbH"
In Italy it is ........"Philips SpA."
In Singapore it is ...."Philips Pte. Ltd."
In Viet Nam it is ....."Cong-Ty Philips"
And so on...
Often one Company will sell its lamps to another because that other Company's PAR-38 Plant say, is off line, so to supply demand they buy from their "compeditor" and badge the PAR-38s with their own brand, but the PAR-38s will still look like those of the other brand.
This is not the only reason they trade between each other. You have another pearl G.L.S. lamp branded "Thorn", but it is from the same Plant as this one. In England, Thorn had Plants at Edmonton, North London, TL Lamps, Leicester, H.I.D. and Tungsten Halogen and an old plant at Angel Road North London. Thy also had lamps made in Australia, New Zealand and Indonesia by E.L.M.A., Z.E.L.M.A. Miramar, Wellington, and Paramar, Auckland and Sidorjo, Surabaya respectively. But these were only ever sold in 240v realms.
I hope this goes some way to understanding the lamps in your collection better. That's why we collect!