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Bulb & Socket Guide

PartyLights.com hopes to take the guessing game out of string light and bulb shopping. There are only three bulb sizes that we sell: C7, C9 and Medium. These are the names we use, but these bulb sizes can go by many different names. The image above is a great visual for bulb size comparison. Below provides some additional information to help you understand the differences.



A Bulb By Any Other Name...

  • C7 Bulbs have a candelabra or E12 base. This size bulb is typically used for chandelier-type fixtures and
    decorative lighting.
  • C9 Bulbs have an intermediate or E17 base. These are historically known as the old Christmas light bulb size.
  • Medium Bulbs have a E26 base (E27 in Europe). This is the same size as a standard household bulb.


Naming Convention

Besides the C7 or intermediate size references, the base size has the letter-number format. The first letter designates the shape or form of the base. The number represents the width of the base (normally in millimeters). For example, our 11S14 bulb has an E26 base. The "E" refers to the style which is an Edison screw-in, and the 26 means it has a 26 mm base width.



Bulb Comparison

The table below lists all of the bulbs sizes available through PartyLights.com. The chart allows you to compare the size and wattage on one page. The sizes listed are the size of the globe of the bulb and does not include the extra height of the socket.


C7 Base Bulbs
G30 Bulb G30 Bulbs
5 watts
1.25" diameter
$0.80
G40 Bulb G40 Bulbs
5 watts
1.5" diameter
$0.90
G50 Bulb G50 Bulbs
7 watts
2" diameter
$1.00
 
C9 Base Bulbs
G40 Bulb G40 Bulbs
7 watts
1.5" diameter
$0.90
G50 Bulb G50 Bulbs
7 watts
2" diameter
$1.00
10S11 Bulb 10S11 Bulbs
10 watts
1.5" diameter
$1.00
C9 Bulb C9 Bulbs
7 watts
1" x 2"
$0.35
LED C9 Bulb LED C9 Bulbs
0.49 watts, 5 LEDs*
1" x 2"
$1.80 - $2.25
LED G30 Bulb LED G30 Bulbs
0.49 watts, 5 LEDs*
1.125" diameter
$3.00
LED G40 Bulb LED G40 Bulbs
0.49 watts, 5 LEDs*
1.5" diameter
$3.50
LED G40 Premium Bulb LED G40
Premium Bulbs

0.6 watts, 5 LEDs*
1.5" diameter
$4.00
LED G40 Professional Bulb LED G40
Professional Bulbs

1 watt, SMD LED
1.5" diameter
$7.00
LED G50 Premium Bulb LED G50
Premium Bulbs

0.6 watts, 6 LEDs*
2" diameter
$4.25
 
Medium Base Bulbs
7.5 S11 Bulb 7.5 S11 Bulbs
7.5 watts
1.5" x 1.25"
$1.00
G50 Bulb G50 Bulbs
15 watts
2" diameter
$1.30
11S14 Bulb 11S14 Bulbs
11 watts
1.75" x 2.75"
$1.00
A15 Bulb A15 Bulbs
15 watts
2" diameter
$1.15
A19 Bulb A19 Bulbs
25 watts
2.25" x 3"
$1.30
LED G50 Bulb LED G50 Bulbs
0.96 watts, 10 LEDs*
2" diameter
$4.00
LED G50 Premium Bulb LED G50
Premium Bulbs

0.7 watts, 16 LEDs*
2" diameter
$7.50
LED G50 Professional Bulb LED G50
Professional Bulbs

1.4 watts, SMD LED
2" diameter
$8.50
LED S14 Bulb LED S14 Bulbs
0.96 watts, 10 LEDs*
1.75" x 2.75"
$4.00
LED S14 Premium Bulb LED S14
Premium Bulbs

1 watt, 16 LEDs*
1.75" x 2.75"
$7.50
LED S14 Professional Bulb LED S14
Professional Bulbs

1.4 watts, SMD LED
1.75" x 2.75"
$8.50


*The bulb wattage is the power that it draws. For LED bulbs, we estimate that the light it emits is about 1 watt per LED. For example, the LED C9 bulb has 5 LEDs, so we estimate it emits about 5 watts.