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Part of keeping your outdoor lighting operating well is creating weather and waterproof wire connections. It’s important to set it up using safe electrical connectors. Wire nuts get the job done because they provide secure, long-lasting connections in outdoor lighting systems. These small connectors protect wires from water damage and temperature extremes.
Before you get started on your project, or if you are working on an upgrade to your light system, it’s useful to know how wire nuts work in an outdoor lighting setup.
Wire nuts are small, insulated connectors. They’re typically made of plastic with a metal core. They are used to join electrical wires together. The main function they perform is that they keep wires fastened and protected from rain, humidity, and temperature changes, even in severe weather.
Waterproof wire nut connectors are made to withstand wet environments. The indoor-rated ones don’t work well outside, and can fail when exposed to moisture or sunlight. On the packaging, watch for ratings like “weatherproof” or “outdoor use” so you’ll know that they will work with your outdoor lights.
When you purchase from reputable retailers, such as Best Pro Lighting, you’ll receive high-quality, UL-listed wire nuts. Choose from Best Pro Lighting’s selection of Waterproof Wire Nut - BPL80, Water Proof Wire Nuts Bag of 50, and Waterproof Wire Nuts - Bag of 100. These outdoor lighting accessories can be used with all low voltage landscape lighting wires, above and underground. They’re filled with clear USA silicone to protect spliced wires from moisture and oxidation.
1. Standard Twist-On Wire Nuts
These common wire nuts are designed with a plastic cap and a threaded metal insert. They’re not waterproof and need electrical tape or a weatherproof enclosure.
2. Waterproof Wire Nuts (Silicone-Filled or Gel-Filled)
These wire nuts are filled with silicone or gel for sealing out moisture. These pre-filled products make a watertight seal to protect wires.
3. Heat-Shrink Wire Connectors
These connectors combine a wire nut with a heat-shrink tube. After twisting the wires, you apply heat to shrink the tubing, to make the waterproof, insulated seal. They’re highly durable but require a heat gun to install.
Create a safe and reliable connection for your outdoor lighting by following these steps:
1. Turn off the power. Strip about ½ inch of insulation from the ends of the wires you’re connecting.
2. Choose a waterproof wire nut connector sized for the number and gauge of wires.
3. Align the stripped wire ends and twist them together clockwise using your fingers or pliers.
4. Place the waterproof wire nut over the twisted wires and twist clockwise until secure. For silicone- or gel-filled nuts, you may feel slight resistance due to the sealing material.
5. Test the Connection: Gently tug the wires to ensure they’re secure.
6. Place connections in a weatherproof junction box for added protection against water and debris.
7. Restore power and test your outdoor lighting to confirm it works properly.
Most importantly: Starting your project on the right foot is always important. As we mentioned above, it can’t be stressed enough how important it is to choose appropriate wire nuts for the job. Be sure you use outdoor-rated wire nuts to keep your connections safe and operating well in rain, heat, cold and the range of weather your lights will be exposed to.
Using wire nuts correctly is key to ensuring safe, durable outdoor lighting. Waterproof wire nut connectors and proper installation techniques can protect your lighting system from the elements so you can enjoy years of reliable performance.
For best results, always prioritize quality wire nut products, such as those sold by Best Pro Lighting. We invite you to review our product line and contact us or call 1 (888) 882-4823 with any questions.
Q: Can I use regular wire nuts for outdoor lighting?
A: No, regular wire nuts are not made for outdoor use as they lack waterproofing. Use waterproof wire nuts, and for added protection, you can place connections in a weatherproof enclosure.
Q: Are waterproof wire nuts reusable?
A: Most waterproof wire nuts, especially silicone- or gel-filled ones, are not designed for reuse. That’s because the sealing material may not reseal effectively multiple times.
Q: How do I know if my wire nuts are rated for outdoor use?
A: Check the packaging to see if it mentions “waterproof,” “weatherproof,” or “outdoor-rated.” Look for UL certification and ensure they’re designed for your wire gauge and outdoor conditions.
