Interior Lighting for Designers

TABLE 5

COMPARATIVE LUMINANCE OF INCANDESCENT AND FLUORESCENT LAMPS

(APPROXIMATE CANDELAS PER SQUARE INCH)

Lamp Description Shape Characteristics Luminance (cd/sq in)

Incandescent

150 W A21 (IF) 150.0

Fluorescent

Preheat

8 W T5 (12") 8.1

15 W T8 (18") 6.7

15 W T12 (18") 4.1

20 W T12 (24") 4.6

Rapid Start

30 W T12 (36") 5.3

32 W T8 (48") 7.4

40 W T8 (60") 7 4

40 W T12 (48") 5.4

40 W T12 (48" ES) 4.7

40 W T12 (22^716 " U-bent) 5.0

High Output

24" T12 (35 W) 6.1

48" T12 (60 W) 7.3

72" T12 (85 W) 7.3

96" T12 (110 W) 7.3

96" T12 (95 W ES) 6.6

Very High Output

48" T12 (116 W) 12.0

72" T12 (162 W) 12.0

96" T12 (212 W) 12.0

96" T12 (185 W ES) 11.2

Instant Start

40 W T12 (48") 5.3

40 W T12 (60") 2.3

Slimline

42" T8 (23 W) 5.3

64" T8 (35 W) 5.3

INTERIOR LIGHTING FOR DESIGNERS