Philips Mercury Vapour Lamps in Collection

(HPL-N)

80 Watt

Pear-shaped MB/U; date code '28': April 1960. (Hamilton, Scotland)

From November 2007 (China).

125 Watt

From January 1983 (Turnhout, Belgium).

Early 1990s' 125 Watt lamps with 3BC cap (left) and E27 cap (right).

From August 2002 (Holland).

HPL-N Comfort; from January 2001 (Turnhout, Belgium).

From November 2005 - GES cap version.

250 Watt

'PowerWhite' Date code '0B' - from February 1970 (Hamilton, UK)

Date code '7K' - from October 1977 (Eindhoven, The Netherlands).