Side-by-Side Comparison
Indoor Climate & Fixtures
Curtain Sizes vs. Light Bulb Bases
Comparing 2 standards across 17 specifications. 17 key differences identified.
Comparing:
Curtain Sizes
Light Bulb Bases
Window curtain panels standardize lengths across 63" (sill length), 84" (8-foot ceiling floor length), 96" (9-foot ceiling floor length), 108" (10-foot ceiling), and 120" (two-story), with a 1.5× to 2× fullness width multiplier.
Domestic light bulb bases standardize screw (Edison) and pin configurations. The E26 (26 mm) base serves as the standard medium screw in 120V North America, E27 (27 mm) in 230V Europe, E12 (12 mm) for candelabras, and GU10 for 120V/230V twist-lock track spotlights.
Specification Comparison Table
17 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
WCAA Standards / Interior Design Architectural Clearances | IEC 60061 / ANSI C81.61 (Electric Lamp Bases) |
|
63-Inch Panel Length
|
160 cm | Window sill length / baseboard heater clearance | — |
|
84-Inch Panel Length
|
213 cm | Standard floor length for standard 8-foot (96") ceilings (Universal) | — |
|
96-Inch Panel Length
|
244 cm | Floor length for 9-foot (108") ceilings mounted near ceiling | — |
|
108-Inch Panel Length
|
274 cm | Floor length for 10-foot (120") tall custom ceilings | — |
|
120-Inch Panel Length
|
305 cm | Two-story foyers and dramatic high grand rooms | — |
|
Fullness Width Multiplier
|
Total fabric width = 1.5× to 2.0× window frame width (2.5× for sheers) | — |
|
Rod Mounting Height Rule
|
Mount rod 4 to 6 inches (10–15 cm) above window frame (or halfway to ceiling) | — |
|
Rod Width Extension Rule
|
Extend rod 3 to 6 inches (7.6–15 cm) beyond frame sides for max natural light | — |
|
E26 Medium Edison Screw
|
— | 26 mm (1.02") diameter | Standard North American residential lamp base (120V) |
|
E27 Medium Edison Screw
|
— | 27 mm (1.06") diameter | Standard European/International residential base (230V) |
|
E12 Candelabra Screw
|
— | 12 mm (0.47") diameter | US chandeliers, nightlights, sconces, holiday bulbs |
|
E14 Small Edison Screw (SES)
|
— | 14 mm (0.55") diameter | European candelabra and small accent fixture standard |
|
E39 / E40 Mogul Screw
|
— | 39 mm (US) / 40 mm (EU) | High-wattage commercial & industrial fixtures |
|
GU10 Bi-Pin Twist-Lock
|
— | 10 mm pin spacing with mushroom feet | 120V/230V mains voltage spotlights |
|
G9 Looped Bi-Pin
|
— | 9 mm looped pin spacing | 120V/230V compact halogen/LED capsules |
|
MR16 (GU5.3)
|
— | 5.3 mm pin spacing | 12V low-voltage directional spotlight base |