In the following patterns the essential principles of the Highfield fitting have been applied to outside weather-tight fittings, where its special features render it superior to all other types, inasmuch as the lamps are properly protected from vibration, to which such outside fittings are always greatly subject, whilst the fact that the lanterns are dust proof fully preserves the efficiency of the lighting with a minimum trouble.

The fitting is supplied with outside plug terminals, which make its installation and cleaning a very simple matter, and is sent out complete with holders and wired.

FIRST HIGHFIELD F 2310 Copper, japanned green 36/- each For one 100 or 200 Watt. Osram Lamp. Fitted with bayonet holder. SECOND HIGHFIELD F 2311 Copper, japanned green 48/- each For one 300-1000 Watt. Osram Lamp. Fitted with screw holder. Opaloid or twisted clear flint glass globe. Detachable plug connections.

THIRD HIGHFIELD F 2314 Copper, japanned green 45/- each For one 100 or 200 Watt. Osram Lamp. Fitted with bayonet holder. FOURTH HIGHFIELD F 2315 Copper, japanned green 60/- each For one 300-1000 Watt. Osram Lamp. Fitted with screw holder. Opaloid or twisted clear flint glass globe. Detachable plug connections.

Section showing Internal Arrangements of "HIGHFIELD" Outside Fittings.