What is a c7 bulb?

Asked By: Sonja Wallbrunn | Last Updated: 3rd April, 2020
Category: hobbies and interests candle and soap making
4.9/5 (342 Views . 32 Votes)
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).

Click to see full answer


Then, what does c7 mean on a light bulb?

C7 refers to the size of the base of the bulb; from base to tip the C7 bulb is a little over two inches high. C7 Christmas light bulbs have an E12 base (the same size base as the bulb you use for a traditional night light). The letters LED stand for Light Emitting Diode.

Likewise, what is the size of a c7 bulb? The bulbs are generally 3/4 inch in diameter and 1 1/8 inches tall. C7 lights have the same strawberry shape as C6, but are slightly larger. They measure 1 inch in diameter and 1 1/2 inches tall. Their width gives them a rounded, bulbous look.

One may also ask, what's the difference between c7 and c9 lights?

C7 and C9 are terms that refer to the socket size on a cord. The sockets on a C7 cord are slightly smaller than on a C9 cord. Each type of cord uses a different base size of light bulb, the C7 cord fits a candelabra base bulb and the C9 cord fits an intermediate base bulb.

What is the wattage of a c7 bulb?

7 watts

37 Related Question Answers Found

Which is better c7 or c9?

C7 bulbs are the smaller than C9s. The have an E12 candelabra base, the same size as a night light bulb. They are around 1 1/2 inches long and generally use 5 watt bulbs for incandescent bulbs. C9 bulbs are larger, over 2 inches long, and fit an E17 base.

Do c7 bulbs get hot?

The older, incandescent bulbs do get hot, which makes them a fire hazard when used on or near flammable or delicate holiday decorations. However, the LED C7 and C9 bulbs do not get hot to the touch, expanding the creative horizons of where they can be used—anywhere… which leads us to…

What are the different sizes of light bulb bases?

(For example, E12 has a diameter of 12 mm) There are 4 common sizes of screw-in sockets used for line-voltage lamps:
  • Candelabra: E12 (diameter of 12 mm)
  • Intermediate: E17 (diameter of 17 mm)
  • Medium or Standard: E26 (diameter of 26 mm)
  • Mogul: E39 (diameter of 39 mm)

What are the different bulb bases?

About Light Bulb Base Types
  • E39 - Mogul.
  • E26 - Medium.
  • E17 - Intermediate.
  • E12 - Candelabra.
  • E11 - Mini Candelabra.
  • E10 - Miniature.
  • E5 - Midget.

What are the sizes of light bulb bases?


Shop by screw base with our Universal Bulb Finder
  • E26/E27 Medium – Edison 26-mm or 27-mm Diameter.
  • E12 Candelabra – Edison 12-mm Diameter.
  • E14 European – Edison 14-mm Diameter.
  • E17 Intermediate – Edison 17-mm Diameter.
  • E39/E40 Mogul – Edison 39-mm or 40-mm Diameter.

How big is an a15 bulb?

The A15 bulb is 158 in (1 78 in; 48 mm) wide at its widest point.

What base is my light bulb?

The medium E26 base is the most common light bulb base. It is used in most incandescent, halogen, CFL, CCFL, and HID light bulbs. The mogul E39 base is found in larger sized light bulbs, such as high wattage HID.

How do I know what size light bulb I need?

To determine a light bulb size, use the full size scale shown (calibrated in eighths). Place edge of the light bulb to be identified on the top end of the scale and measure the approximate diameter by reading the measurement at the opposite edge of the light bulb.

How many c7 lights do I need for a 7 foot tree?

How to Put Lights on a Christmas Tree?
Christmas Tree Height Number of Christmas Lights
5 Feet 150 lights per strand / 7 strands
6 Feet 150 lights per strand / 8 strands
7 Feet 150 lights per strand / 9 strands
8 Feet 150 lights per strand / 10 strands

What is a c7 light bulb?


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).

Are c7 and c7 1/2 bulbs the same?

Most C7 Christmas lamps use a candelabra base. I've never seen any difference between the base size of C7 and C7-1/2 lamps. It does not refer to the Shape of Glass. So the shape of the glass is the same, Conical.

Do Christmas lights increase your electric bill?

So, the answer . . . Christmas lights don't have to use a lot of energy. By using LED lights and putting your lights on an automated schedule, you can reduce the cost of holiday lighting to have a minimal impact on your electrical bill.

How many feet of lights do I need for a 7 foot tree?

A good rule of thumb is 100 lights for every foot-and-a-half of tree. However, if you love lights, you may want to double or even triple that amount.

Selecting Your Christmas Tree Lights.
Tree Height Number of Lights
6 to 7 Feet 400 to 700
7.5 to 8.5 Feet 700 to 1,000
9 to 10 Feet 1,000 to 1,300
12 Feet 1,500 to 2,000

How many c6 lights do I need for a 7 foot tree?

Another quick estimate would be to use 100-150 lights per foot of tree (starting with a 6 ft tree). This method results in more lights than the above table. To determine the number of C7 or C9 lights for your tree, try the following: Ht x diameter (divided by 2) for trees up to 7 feet = number of lights.

How many watts is a c9 LED bulb?


How Much Electricity Do LED Christmas Lights Use?
Type of Light Bulbs Per Set Per Bulb Watts
Incandescent C9 Stringer Set 25 7 watts
LED Mini Lights (Conical or M5) 50 .07 watts
LED Mini Lights (Conical or M5) 70 .07 watts
LED C9 Stringer Set 25 .09 watts

How many c9 LED lights can be strung together?

For example if your light string is rated at 20 watts, then you can run a maximum of 10 strings together in series. Now you can see why LED light strings can be run with so many more in series than traditional incandescent mini lights that require up to 10 more times the power to operate.

Do Christmas lights get hot enough to start a fire?

The lights themselves cannot burn curtains, carpet, fabric or Christmas trees. You can leave your Christmas lights on all night and they will not get hot enough to start a fire. It is important to note, however, that an electrical fire may start due to plugging in too many light strings to a single extension cord.