100 White C9 Rubber O-Rings

100 White C9 Rubber O-Rings

Price: $11.82
Unit price  per 
Shipping calculated at checkout.

Help protect your lights from moisture. These o-rings are designed primarily to be used in conjunction with LED retrofit bulbs installed in standard, traditional Christmas light cord. Snugging in around their narrower bases, these rings improve your light string's water resistance.

Place the ring around the base of the bulb. Then screw the bulb into the socket.

Make sure to fully tighten down your bulbs to ensure electrical contact between the bulb and C9 socket.

Material Rubber
Width 1 1/8"
Height 3/8"
Usage Indoor/Outdoor
Quantity 100
Purpose / Uses Provides Extra Watertight Protection Between Bulb and Socket
Bulb Type Accessory to C9 (Intermediate) Sockets
Ring Specification Flexible Rubber Ring Snugly Fits Onto Rim of Socket between the Bulb and Socket to Provide a Weatherproof Seal.

For CA Residents: Prop 65 Notice

Warranty and returns

Please test your lights when you receive them! Everyone is happier when we resolve issues quickly.

Warranty. Our warranty for all our products is 90 days of normal, seasonal use. If a product is defective or fails during the 90 days following receipt of your order, please contact us right away. We will work with you to troubleshoot the problem, and if the issue is not easily and quickly resolved, we will ll correct the situation.

Returns. You can return eligible products when you contact us within 14 days of receiving an order to let us know you are returning items from your order. We will provide you with addressing instructions. Customer is responsible for return shipping.

Eligible products have not been installed and are in their original packaging in like-new condition. If returned products are received within 45 days of receiving your order, there is no restocking fee. After 45 days, a 15% restocking fee will be deducted from your merchandise credit. No returns accepted after 60 days.

Upon receipt of your return, your account will be credited for the cost of the products. Shipping charges are not credited.

See our complete Shipping and Warranty page for return instructions and additional information.

Customer Reviews

Based on 5 reviews
James S.
Added Protection

Just installed these rubber o-rings onto our new light strings. They provide a great seal at the bottom of the bulb where it meets the socket. With the occasional tropical downpours here in Florida, I am confident this added protection will keep our lights “happy� for years to come.

Jon S.
Perfect product!

I wish I had found these years ago, before corrosion made me replace all of the sockets on the luminarias we put up for Christmas! These little live rubber donuts seal perfectly between the bulb and the socket. My only regrets -- I only needed 22 but had to buy 100, and had to pay a warehouse charge that was more than the price of the items.

Great Idea

I installed almost 500 LED bulbs on my most recent project with these little beauties and consider them an essential part of the entire investment. If you're buying cord sets and installing your own bulbs I'm not sure there is a better way of weather proofing your light sets and protecting your investment especially if you're spending extra for LED bulbs. The O-ring seals the bulb and socket very well. Be sure to get your bulbs in good and snug. If you don't get them turned in good and tight the bulb may not light. It's very easy to check with the light set on the ground and get them in all snug. I suggest lighting it all up on the ground before heading up the ladder.

Mike M.
C9 Rubber O-ring

Purchased more rubber O-rings because they did a great job of keeping the snow out of the sockets which would cause them to crack and break without them.

Paul C.
Get these and save your lights and light strings

These O-rings are like the one that used to be on our old lights. They made our lights last much longer because the water stayed out of the socket. It also made sure the socket was less likely to rust out. Well worth the purchase and the effort to install - which is not much more than slipping it on the base of the light and screwing the light in. The nice thing is they also help keep the lights in the socket they don't start turning, because the o ring help keep the light tight in the socket. Get these


Shipping Policy

We are currently shipping Monday - Thursday 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.