How Many LED Lights Can You Use on a 20 Amp Circuit?: Fast-Track Guide to Calculating LED Light UsageSarah ThompsonMay 23, 2025Table of ContentsImportant Considerations:FAQTable of ContentsImportant ConsiderationsFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeWondering how many LED lights you can run on a 20 amp circuit? It's essential to understand the basics of electrical load to ensure safety and efficiency in your lighting setup. A 20 amp circuit can typically handle around 240 watts of lighting, but the actual number of LED lights you can connect depends on the wattage of the individual fixtures. Most LED lights range from 8 to 15 watts each.Before you begin, consider the wattage of your specific LED lights. For instance, if each light uses 10 watts, you can safely install 24 lights on your 20 amp circuit (240 watts ÷ 10 watts per light = 24 lights). However, it’s advisable to leave some headroom to avoid overloading the circuit.Always ensure you're following any local electrical codes and regulations. It's also a good idea to consult with a licensed electrician if you're unsure of the specifics regarding your setup.Important Considerations:1. **Wattage of LEDs**: Calculate the total wattage your LED lights consume to determine the maximum number you can install.2. **Headroom**: Leave a 20% headroom for safety. This means you should aim for a maximum load of around 80% of the circuit's capacity, which equates to approximately 192 watts.3. **Type of circuit**: Make sure the circuit is designed for the intended use, considering whether it’ll support additional devices beyond lighting, such as outlets or fans.FAQQ: Can I put different wattage LED lights on the same circuit?A: Yes, but it’s crucial to calculate the total wattage combined and ensure it doesn’t exceed the circuit’s limit. Make sure to consider all fixtures connected on that circuit.Home Design for FreePlease check with customer service before testing new feature.