FAQs

Holiday Lighting FAQs

Clear answers about LED Christmas lights, C7/C9 bulbs, installation, safety, and care.

What size bulbs should I purchase?
Bulb “size” refers to the series (e.g., C7, C9) and base type. C9 is larger and gives a bold, classic look on rooflines; C7 is slightly smaller and suits trim and trees. Always match bulb size and base to your sockets.
What are LED lights?
LEDs (light-emitting diodes) create light when current passes through a semiconductor. Compared with incandescent bulbs, quality LEDs can be dramatically more efficient and longer-lasting. Learn more at ENERGY STAR: Learn About LED Lighting.
How long do LED lights last?
Lifespan varies by product and usage. Many LED holiday lights are rated for tens of thousands of hours—far longer than incandescent bulbs. Check the rated life and warranty for a given product.
How much less power do LEDs use than incandescent?
The U.S. Department of Energy notes residential LEDs use at least 75% less energy and can last up to 25× longer than incandescent lighting. See DOE: LED Lighting (Energy Saver).
What’s the difference between C7 and C9 bulbs?
C7 is roughly 2" tall with an E12 base; C9 is roughly 3" with an E17 base. C9s are brighter and stand out more on rooflines; C7s work well for smaller features and trees.
Warm white vs. cool white — what’s the difference?
Color temperature (Kelvin, K) affects how “warm” or “cool” the light looks. Lower values (≈2700–3000K) appear warm and cozy; higher values (≈4000–5000K+) look crisp/cool. See DOE: Lighting Principles & Terms.
Are your bulbs replaceable?
Some strings use replaceable bulbs; others are factory-sealed for weather protection. Check the specific product’s specifications for bulb type and replaceability.
Are LED Christmas lights safe for outdoor use?
Yes—if the lights are rated for outdoor use (UL-listed for wet/damp locations or an appropriate IP rating). Always follow the product label. For seasonal lighting safety tips, see CPSC Holiday Safety.
Can I connect multiple strings end-to-end?
Often yes. LED strings usually allow more connections than incandescent, but you must follow the maximum “end-to-end” limit printed on the package or product label to avoid overloading a circuit.
Do LED Christmas lights get hot?
LEDs operate much cooler than incandescent bulbs, which helps with safety and energy efficiency. Still avoid covering lights with flammable materials or pinching wires.
Can I dim LED Christmas lights?
Only if the set is marked “dimmable” and used with a compatible dimmer. Check the product’s specifications for dimmer compatibility.
How many lights do I need for my Christmas tree?
As a starting point, plan about 50–75 mini LEDs per vertical foot. Adjust for tree style: slim/pencil trees usually need fewer (e.g., a 9-ft pencil tree around 200–300 lights), while very full trees can use more for a dense look.
How do I measure my roofline for C9 lights?
Measure each straight run and peak with a tape measure. Add roughly 10–15% for slack, turns, and a lead to your outlet.
What does UL-listed mean?
UL (UL Solutions) is a safety certification organization. A UL Mark indicates representative product samples were evaluated to applicable safety standards. Learn more: UL: Look for the Safety Mark.
Are LED lights waterproof?
Most holiday lights are weather-resistant for rain/snow but not designed for submersion. Look for outdoor/wet-location ratings and use outdoor-rated extension cords. See CPSC Holiday Decorating Safety Tips (PDF).
Can I leave Christmas lights on all night?
Use a timer or smart plug and follow manufacturer guidance. For safety and longevity, power down when sleeping or away. See CPSC Holiday Safety.
Why are some bulbs not lighting?
Check fuses in the plug, connections, and any replaceable bulbs. Replace with the same type and rating. If a section stays out, inspect connectors and wiring for damage or looseness.
How do I store lights without tangles?
Wind each string onto a reel or sturdy cardboard, secure the ends, and store in a cool, dry bin to protect the wire and lenses.
What’s the difference between faceted and smooth lenses?
Faceted lenses scatter light for more sparkle; smooth lenses create a clean, glass-like glow. Brightness depends on the LED and lens design, not just the surface texture.
Do you offer commercial-grade stringers and sockets?
Yes—commercial systems typically use heavier-gauge wire and weather-sealed sockets for long runs and demanding environments. Check product specifications for details.
Can I cut and customize stringer wire?
With certain commercial spool-and-socket systems you can cut to length and add sockets. Follow all product instructions and applicable electrical codes.
Do you offer shatter-resistant (polycarbonate) bulbs?
Yes—polycarbonate bulbs are a great choice for commercial installs and high-traffic areas because they’re more impact-resistant than traditional glass.
What wire gauge do I need?
Match the wire gauge to total load and run length. Many commercial runs use 18-AWG or heavier. When in doubt, consult a qualified electrician.
Do you offer bulk pricing and pre-season shipping?
Yes—lead times and volume discounts vary by product and season. Contact us for current availability and pricing.