Philips 7186, SAG100, 5270, 87120 manual Filament Designations, Base Types and Bulb Shapes

High Intensity Discharge 121–148 Solid State Lighting 149–156 Specialty 157–177 Additional Information 178–189

HALOGEN LAMPS

Filament Designations, Base Types and Bulb Shapes

FILAMENT DESIGNATIONS (NOT ACTUAL SIZES)

Filament Designations consist of a letter or letters to indicate how the wire is coiled and an arbitrary number sometimes followed by a letter to indicate the arrangement of the filament on the supports. Prefix letters include C (coil) — wire is wound into a helical coil or it may be deeply fluted; CC (coiled coil) — wire is wound into a helical coil and this coiled wire again wound into a helical coil. Some of the more commonly used types of filament arrangements are illustrated.

BASE TYPES (NOT ACTUAL SIZES)

BULB SHAPES (NOT ACTUAL SIZES)

The size and shape of a bulb is designated by a letter or letters followed by a number.The letter indicates the shape of the bulb while the number indicates the diameter of the bulb in eighths of an inch. For example,“T10” indicates a tubular shaped bulb having a diameter of 10⁄8 or 11⁄4 inches. The following illustrations show some of the more popular bulb shapes and sizes.

Halogená® Bulb Shapes

Halogen Bulb Shapes

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