Customer Support – String Lights Help & FAQ

We're here to help. Reach us by email or WhatsApp — we respond within 1 business day.

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Shipping

  • Processing time: 1–2 business days
  • US transit time: Estimated 5–15 business days after dispatch. For other destinations, see our Shipping Policy.
  • Free shipping: Free standard shipping on all orders, with no minimum purchase, in all markets.
  • Tracking: Every order includes a tracking number sent by email

Track your order →

Returns & Refunds

  • 30-Day Money Back Guarantee — return unused items in original packaging
  • Contact us at support@jcfyoo.com to start a return
  • Refunds processed within 5–7 business days of receiving the return

For damage in transit, please contact us as soon as possible; we recommend reporting it within 48 hours of delivery. This is a recommendation, not a mandatory claim deadline, and does not shorten the 30-day return request window.

Read our full return policy →

Product Care

Battery-Powered Lights

  • Use the battery type and quantity specified for your model; check its listing for included contents
  • Replace batteries when lights dim or flicker
  • Remove batteries during long-term storage to prevent corrosion

USB-Powered Lights

  • Use the connector and voltage specified for the selected USB-powered model
  • Choose a compatible power source with the current capacity specified for that model; keep the USB controller and connections dry

RGB & Color-Changing Lights

  • Use the included remote or app to switch modes and colors
  • Keep the remote sensor unobstructed for reliable signal

General Care

  • Indoor or outdoor suitability depends on the exact product and power version; follow the listing and supplied instructions
  • Do not submerge in water
  • Store in original packaging to protect ornaments and wire

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Frequently Asked Questions

Where is my order?

Check your shipping confirmation email for your tracking number, then visit our order tracking page. Orders are processed within 1–2 business days. Estimated transit time to the United States is 5–15 business days after dispatch. For other destinations, see our Shipping Policy.

How do I return an item?

Email us at support@jcfyoo.com within 30 days of delivery. Include your order number and reason for return. We'll send return instructions. Items must be unused and in original packaging.

Are batteries included with my order?

Check the selected product listing for the battery type, quantity, and included contents. USB versions require a compatible power source with the connector, voltage, and current capacity specified for that model.

What is the difference between battery and USB string lights?

Battery-equipped versions can be placed away from a power outlet; battery type and quantity vary by model. USB versions need a compatible source with the specified connector, voltage, and current capacity. Check the product's intended environment before use. Browse our battery lights and USB lights to compare.