Wintergreen Lighting C9 Christmas Lights, 25-Ct 17FT LED String Lights for Holiday Decorations

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Wintergreen Lighting C9 Christmas Lights, 25-Count 17FT LED String Lights on Green Wire for Indoor and Outdoor Holiday Decorations

Create a bold, classic holiday display with these Wintergreen Lighting C9 red LED Christmas lights. The set includes 25 steady-burning LEDs spaced 8 inches apart on green wire, providing approximately 17 feet of total length for outlining rooflines, decorating large trees, wrapping shrubs, or accenting fences and other structures.

Shatter-resistant acrylic bulbs and sealed one-piece construction help protect the electrical contacts from moisture and corrosion. The energy-efficient set uses only 2.4 watts and is designed to connect with as many as 89 additional compatible sets from a single power connection.

Key Features

25 red C9 LED lights
Approximately 17 feet total length
8-inch bulb spacing
6-inch lead wire
Green wire blends with trees and foliage
Steady illumination with no twinkle effect
Shatter-resistant acrylic bulbs
Sealed one-piece bulb and base construction
Non-removable, non-replaceable bulbs
Only 2.4 watts per set
Connect up to 90 compatible sets end to end
Fused stackable male plug
Female end connector
120V plug-in operation
Dimmable when used with compatible equipment
Indoor and outdoor seasonal use
If one light fails, the remaining lights stay illuminated
Listed average service life of up to 100,000 hours
UL-certified
ENERGY STAR certification claimed
Three-year seasonal warranty claimed
Integrated clips for convenient attachment

Bold Red C9 Bulbs

C9 bulbs are larger and more visually prominent than mini lights, making them well suited to displays that need to remain visible from a distance. Their rich red color creates a traditional Christmas look along rooflines, trees, shrubs, fences, porches, and commercial holiday installations.

The acrylic bulb covers are designed to resist:

Breaking
Cracking
Chipping
Fading

Although acrylic bulbs are more impact-resistant than glass, they are not indestructible. Avoid dropping, crushing, stepping on, or striking the bulbs during installation and storage.

The supplied information does not identify the exact bulb dimensions, color wavelength, brightness, beam angle, or lumen output.

25 Lights Across 17 Feet

The set contains 25 C9 LEDs spaced approximately 8 inches apart on green wire. Its listed total length is approximately 17 feet, including a 6-inch lead between the male plug and the illuminated section.

The green wire helps the strand blend into:

Evergreen trees
Wreaths and garlands
Shrubs and hedges
Garden foliage
Green roofline clips
Other traditional holiday displays

Before purchasing multiple sets, measure the complete installation path and allow additional length for routing to the power outlet, corners, roof peaks, connection points, and natural slack.

Energy-Efficient LED Operation

Each 25-light set is rated at only 2.4 watts. Compared with traditional incandescent C9 light strings, the LEDs use substantially less electricity and generate less heat during normal operation.

The manufacturer lists an average light-string life of up to 100,000 hours. Actual service life can vary according to:

Seasonal operating hours
Electrical conditions
Dimmer compatibility
Weather exposure
Installation practices
Handling and storage
Physical damage
Product age

The 100,000-hour statement should be treated as a manufacturer-rated average rather than a guarantee that every set will operate for that exact period.

Connect Up to 90 Sets

The fused stackable male plug and female end connector allow compatible sets to be joined end to end. The supplied specifications state that as many as 90 sets may be operated from one plug.

At the listed dimensions and wattage, 90 sets provide approximately:

2,250 C9 LEDs
1,530 feet of total nominal string length
216 watts of combined listed load

“More than 1,500 feet” refers to the combined nominal length of 90 individual 17-foot sets. Actual illuminated coverage and installed distance may differ because of lead wires, connection overlap, corners, slack, and display layout.

When connecting multiple sets:

Use only mutually compatible light strings.
Inspect every plug, socket, fuse, wire, and connector.
Confirm the maximum connection limit printed on the product label.
Add the wattage of every connected set.
Keep all connections properly seated.
Protect outdoor connections from standing water.
Do not exceed the ratings of the outlet, extension cord, timer, or other power equipment.
Do not connect more than 90 sets, even if the electrical supply appears capable of supporting more.

The 90-set limit should be verified against the product label and included instructions before publication or large-scale installation.

Sealed One-Piece Construction

Each LED bulb and base forms a sealed, one-piece assembly intended to reduce moisture entry and contact corrosion. The lights arrive assembled, so there are no loose bulbs to install before decorating.

The bulbs are permanently attached:

They cannot be unscrewed.
They cannot be removed.
They cannot be replaced individually.
They should not be twisted or pulled from their sockets.

If a bulb is damaged, do not attempt to open, splice, or rebuild the sealed assembly.

If One Light Goes Out, the Rest Stay Lit

The string is designed so that a single failed LED does not normally cause the remaining lights to go dark. This helps preserve the overall display if an individual light stops operating.

This feature does not mean the string will continue working after every type of failure. A blown fuse, damaged plug, broken conductor, failed connection, or loss of power can still affect part or all of the set.

Steady, Non-Twinkle Lighting

The LEDs provide constant red illumination rather than an automatic flashing or twinkling effect. No built-in controller, animation pattern, remote control, or timer is identified.

An external controller should not be used unless the manufacturer confirms that it is electrically compatible with the set.

Dimmable Operation

The bulbs are described as dimmable. Dimming performance depends on the dimmer, connected load, wiring configuration, and manufacturer compatibility.

Before connecting the lights to a dimmer:

Confirm that the dimmer supports LED holiday lighting.
Check the minimum and maximum load requirements.
Verify that the complete connected string is within the dimmer’s rating.
Follow the light manufacturer’s instructions.
Test for flickering, buzzing, unstable brightness, or abnormal heat.
Stop using the dimmer if irregular operation occurs.

A standard incandescent dimmer may not work correctly with a low-wattage LED string. The supplied information does not identify approved dimmer models or a guaranteed dimming range.

Indoor and Outdoor Decorating

These C9 lights are approved for indoor and outdoor seasonal use. Suitable applications include:

Rooflines
Eaves and gutters
Large Christmas trees
Outdoor trees
Shrubs and hedges
Fences and railings
Porches
Patios
Wreaths and garlands
Columns
Windows
Entryways
Indoor holiday displays
Parties and seasonal events
Storefronts
Restaurants and hotels
Commercial holiday displays

Outdoor approval does not mean the string or plugs may be submerged. Keep connections away from standing water, drainage areas, roof runoff, irrigation spray, and locations where snow or ice may accumulate around electrical components.

Installation Guide

Remove the string from its packaging carefully.
Uncoil it completely without pulling on the bulbs.
Inspect the wire, plugs, sockets, bulbs, clips, and fuse compartment.
Connect the set temporarily and confirm that it operates.
Disconnect it from power before installation.
Measure and plan the display route.
Install approved light clips at suitable intervals.
Attach the string using the integrated bulb clips or compatible mounting hardware.
Leave gentle slack around corners and connection points.
Keep the cable away from sharp edges, moving doors, and hot surfaces.
Protect all outdoor connections from collected water.
Connect the string to a suitable 120V outlet.
Inspect the display after dark and adjust it only after disconnecting power.

Do not install the lights by piercing the wire with nails, screws, staples, or tacks.

Roofline Installation

C9 lights are commonly used to outline roofs because their large bulbs create a distinct, evenly spaced display.

For roofline use:

Use clips designed for C9 bulbs, gutters, shingles, or the applicable surface.
Follow safe ladder practices.
Do not install lights during rain, snow, ice, or strong wind.
Do not lift or carry an energized string.
Keep extension connections off the roof surface where water can collect.
Do not place cords across sharp flashing or metal edges.
Avoid routing cables through doors or windows where they may be pinched.
Keep the strand clear of chimneys, vents, heaters, and power lines.

Do not walk on the bulbs, plugs, or wire.

Tree and Shrub Installation

When decorating trees and shrubs:

Unfold branches gently before positioning the lights.
Use the integrated clips where appropriate.
Avoid thorny branches that may damage the insulation.
Do not pull the strand tightly around growing limbs.
Keep plugs and connectors above wet soil.
Route cords away from lawn equipment and walkways.
Remove the lights before pruning or trimming vegetation.

Do not use the light string to support ornaments, extension cords, or other decorative products.

Electrical Safety

Read and retain the included instructions.
Use only with standard 120V U.S. household power.
Inspect the entire string before each season.
Do not use a set with damaged insulation, plugs, sockets, bulbs, or connectors.
Confirm the product label’s maximum end-to-end connection limit.
Use an outdoor-rated, GFCI-protected outlet for outdoor installations.
Use only properly rated outdoor extension cords outdoors.
Keep plugs and connections dry and elevated.
Do not handle electrical components with wet hands.
Do not cut, splice, shorten, or modify the wire.
Do not remove or bypass the plug fuse.
Replace fuses only with the type and rating specified by the manufacturer.
Do not connect the string while it remains in its packaging.
Disconnect power before installing, moving, cleaning, or storing the lights.
Keep the lights away from open flames, heaters, fireplaces, grills, and other heat sources.
Keep the strand away from children and pets that may pull or chew the wiring.
Do not overload outlets, timers, extension cords, power strips, or dimmers.
Follow all warnings printed on the product and packaging.

Although LED bulbs normally operate at a lower temperature than incandescent bulbs, the product is electrical equipment and still requires proper installation and supervision.

Specifications

Brand: Wintergreen Lighting
Product Type: C9 LED Christmas string lights
Light Color: Red
LED Quantity: 25
Lighting Effect: Steady, non-twinkle
Bulb Style: C9
Bulb Material: Acrylic
Bulb Construction: Sealed one-piece bulb and base
Bulb Replaceability: Non-removable and non-replaceable
Wire Color: Green
Bulb Spacing: Approximately 8 inches
Lead Length: Approximately 6 inches
Total Set Length: Approximately 17 feet
Power Consumption: 2.4 watts per set
Input Power: 120V corded electric
Male Plug: Fused and stackable
End Connector: Female plug
Maximum Listed Connection: Up to 90 compatible sets
Dimmable: Yes, with compatible dimming equipment
Average Listed Service Life: Up to 100,000 hours
Indoor/Outdoor Use: Yes
Certification Claims: UL and ENERGY STAR
Listed Warranty: Three seasonal years
Failure Design: Remaining lights stay illuminated if one LED fails
Mounting Feature: Integrated attachment clip

The supplied information does not identify the model number, exact bulb dimensions, total illuminated length, tail length, wire gauge, fuse rating, plug type designation, LED brightness, color wavelength, operating-temperature range, dimmer compatibility list, product weight, replacement-part availability, or detailed warranty conditions.

Certifications and Warranty

The product is described as UL-certified, ENERGY STAR-certified, and backed by a three-year seasonal warranty.

Before publishing these claims, confirm:

The exact UL certification or listing mark
The applicable UL standard
The ENERGY STAR product category and current documentation
Whether certification applies to this exact model
The warranty start date
The meaning of “seasonal year”
Covered defects
Exclusions
Proof-of-purchase requirements
Claim submission procedure
Whether return shipping or replacement costs apply

Do not describe the set as certified beyond the scope shown on its packaging, electrical label, or manufacturer documentation.

Care and Maintenance

Disconnect the lights before cleaning or inspection.

Use a soft, dry or lightly damp cloth to remove dust and debris. Allow every component to dry completely before reconnecting it to power.

Do not use:

Pressure washers
Concentrated hose spray
Abrasive cleaners
Bleach
Solvents
Sharp tools
Immersion cleaning

Inspect the set periodically for:

Cracked insulation
Damaged plugs
Loose connections
Broken bulb covers
Corrosion
Water entry
Discoloration
Abnormal heat
Flickering or intermittent operation

Stop using the set if electrical or structural damage is found.

Seasonal Storage

Disconnect the lights from power.
Remove every mounting clip carefully.
Do not pull the strand down by its wire or plug.
Inspect the bulbs, sockets, plugs, and insulation.
Wipe away dirt and moisture.
Allow the complete set to dry.
Coil the string loosely around a suitable organizer.
Avoid tight knots and sharp bends.
Protect the non-replaceable bulbs from crushing and impact.
Store the lights in a clean, dry container.
Keep heavy objects off the string.
Retain the product instructions and warranty information.

What’s Included

1 × 25-count red C9 LED light string
Integrated C9 bulb clips
Fused stackable male plug
Female end connector

Replacement fuses, extension cords, roof clips, timers, dimmers, controllers, storage reels, and spare bulbs are not confirmed as included.

Frequently Asked Questions

How many lights are on the string?

The set contains 25 red C9 LEDs.

How long is the light string?

The listed total length is approximately 17 feet.

How far apart are the bulbs?

The C9 bulbs are spaced approximately 8 inches apart.

Are the lights steady or flashing?

They provide steady, non-twinkle illumination. No built-in flashing modes are specified.

What color is the wire?

The lights are mounted on green wire.

Are the bulbs made of glass?

No. The bulb covers are made from shatter-resistant acrylic.

Can the bulbs be removed or replaced?

No. Each bulb and base forms a sealed, one-piece assembly. The bulbs are permanently attached and cannot be replaced individually.

What happens if one bulb fails?

The remaining lights are designed to stay illuminated if one LED goes out. Damage to the fuse, plug, wire, or power connection can still affect the complete string.

Can the lights be used outdoors?

Yes. They are listed for indoor and outdoor seasonal use. Do not submerge the lights or leave electrical connections in standing water.

How many sets can be connected?

The manufacturer states that up to 90 compatible sets can be connected end to end on one plug. Always confirm the limit on the product label before installation.

How much power does each set use?

Each set is rated at 2.4 watts.

Are the lights dimmable?

Yes, they are described as dimmable, but they must be used with compatible LED dimming equipment.

Do the lights include a timer?

No timer is identified as included.

Can the lights be cut to a shorter length?

No. Do not cut, splice, shorten, or otherwise modify the string.

What voltage do they use?

The set is designed for standard 120V U.S. household outlets.

How long do the lights last?

The listed average service life is up to 100,000 hours. Actual lifespan depends on use, installation, weather exposure, and storage conditions.

Is mounting hardware included?

Integrated bulb clips are included. Separate gutter clips, shingle clips, hooks, or ties are not confirmed.