Decoration lamp bulb for Christmas

Abstract

A decoration lamp bulb for Christmas use comprises a lamp bulb body in which a tungsten filament lampwick is mounted within the lamp bulb body, and two poles connecting legs being drawn out from two ends of tungsten filament lampwick, and a vacuum sealing state being maintained within the lamp bulb body by a primary evacuating operation; a outer enclosure within which said lamp bulb body is packaged, and two-poles connecting legs extended from said bulb body, and a vacuum state being maintained within the outer enclosure by a secondary evacuating operation. Thus, the vacuum layer of the outer enclosure can segregate the heat conduction from the tungsten filament lamp surface. Therefore, the brightness can be made higher by the raising of electric current value with better safety and longer service life.

Dependencies are inferred from the claim text.