C9 Spool 500 Foot 15 inch Green Wire SPT-1
C9 Spool 500 Foot 15 inch Green Wire SPT-1

C9 Spool 500 Foot 15 inch Green Wire SPT-1

Price: $168.88
Unit price  per 
SKU: C950015-GSPT1
Shipping calculated at checkout.


  • Purchase 400 LED or incandescent bulbs to fill every socket
  • Parallel wired, cut to fit
  • Plugs not included
  • 18 AWG wiring
  • Bulbs sold separately
Do not install more than 250 continuous feet of this Christmas light spool regardless of bulb type. That is the maximum line specification for 18 AWG wire. Please consult with a licensed electrician for assistance with installation.
Please consult with a licensed electrician for assistance with installation.

Total Length 500 feet Insulation Rating SPT-1
Color of Wire and Sockets Green Wire Gauge 18 AWG
Number of Sockets 400 Lead Wire N/A
Socket Type C9, E17, Intermediate Tail Wire N/A
Socket Spacing 15 inches Voltage 120 V
Lit Length 499 feet Purchase Separately Incandescent or LED C9 Bulbs, Plugs (not included)
Maximum Cut Length 250 feet Bulbs Included No
Material PVC and Copper Warranty 90 Days of Normal Seasonal Use
Fuse Rating 10 Amp Additional Info 2 Weep Holes on Bottom of Socket
Usage Indoor/Outdoor Additional Info Make custom Christmas light cords by cutting to fit
Ratings CSA Rated Materials Additional Info Neither Male nor Female Plugs Included

For CA Residents: Prop 65 Notice

Warranty, shipping, and returns


All of our products are warranted for 90 days of normal, seasonal operation. See our Warranty policy page for more information.


January - July: Orders are shipped Monday - Thursday within 1-2 business days.

August - December: Orders are shipped Monday - Friday. See our Shipping status page to find out when your order will ship.


We accept returns of products in original, like-new condition within 45 days after an order is received. After receipt of return, the amount of purchase price will be credited within 5 business days. Return and original shipping charges are not refunded. See our Returns policy.

Frequently Asked Questions

What is the difference between SPT-1 and SPT-2?  The answer to a common question

How do I light my 20-foot tree? Materials list and the process

What is the difference between C7 and C9 bulbs? Compare the two

How many lights do I need for an outdoor tree?  An article to help answer this question.

Customer Reviews

Based on 13 reviews
Best Spool on the Market!

This spool is just what I needed. The 9 inch spacing is perfect for roof lines. The large spool allows me to have multiple lighting configurations to change to each year.

Work perfect

Works as advertised. Made a great display with minimal electrical knowledge

Nolan S.
Great Product

Everything arrived quickly so we could get our house decorated. Good quality products and great customer service.

works great

only way to go if you a lot of areas to cover on your display. order the wire in bulk and roll out what you need and terminate the ends. now you have the exact fit every year.

Perfect C9 bulk wire -9" Spacing

This 9" C9 bulk wire spacing turned out perfect with Red, Red, White alternating bulbs. I was concerned 12" was too large of spacing and am glad I went with the 9" although you need to buy more bulbs. I also was considering SPT2 but bigger lines get heavy on tall setups, something to think about. Thanks CLS!


I bought this for the entire front of my house and windows. It is very convenient to have these on a large spool and easy to cut to the correct length. A little tedious to have to screw in each individual bulb, but well worth not having them break during installation.

Mark C.
Love it!

Love this product! Works great! Only negative is that they didn't come with instructions on how to install the male and female plugs. Found helpful video on youtube to complete that step.

Jeremy S.
Looks great, all sockets work

Like the 9" spacing, was concerned it would be TOO much, but using the warm white c-9 bulbs it really looks nice. Would recommend this wire.

Quality Wire & Sockets

If you're looking for high quality wire and sockets to create a beautiful and durable long-lasting Christmas display, you've come to the right place. I was nervous to take the leap to custom cut lighting, but wow! I will never go back. It is such a joy to install lights on the house. The included clips are about twice as thick as what you'll ever find at a big box store if you're even lucky enough to find such a set. I'm not an electrician so I wasn't sure how many bulbs I could install LED, or Incandescent. I wasn't sure if the C9 LED bulbs I was planning on using would burn out if I only plugged in one or two or if I needed to install at least 25 or 30 before lighting them up. It turns out you can plug in one or two or 100 C9 LED bulbs. Remove them from areas you don't want lit and then simply cap them off with sockets caps. They're in the accessories section on Christmas Light Source. I called the help line and Dave was so helpful and informative. He gave me all the confidence I needed to make sure I did it right. Take the leap you'll be glad you did.

Excellent quality line!

I used these to cover my house with lights. I loved that the 9" spacing added extra lights for my residential application. All my sockets work and the line was easy to cut to desired lengths.

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Shipping Policy

We are currently shipping Monday - Friday with most orders placed before 1:00 CST shipping the same or next business day.

Orders cannot be canceled or changed once they are placed. 

Delivery Timeframe Notices Regarding Air Orders

Orders placed via ground service should arrive in 1-5 business days depending on your zip code. This estimate does not include weekends, Saturdays, or major Holidays.  

2-Day air orders shipped on Thursday do not arrive Saturday but should arrive the following Monday. Next-Day orders shipped on Friday do not arrive Saturday but should arrive the following Monday. No orders are delivered on the weekend and the weekend does not count as days in transit.

Due to these unprecedented times, UPS and FedEx do not guarantee any method of shipping, including Air Service.

To ensure prompt shipping verify that your order is correct. Please do the following checks:

1. Confirm bulb bases and cord sockets match. 
2. Confirm 18 AWG wire SPT rating matches the SPT rating of plugs.
3. For bulk C7/C9 bulbs and cords orders, don't forget gilbert plugs, if required.
4. Double-check the wire color on all strings lights.