Joomer 100 ft 300-LED Warm White Christmas String Lights

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Product guide

Joomer 100 ft 300-LED Warm White Christmas String Lights

Joomer Christmas string lights provide 100 feet of warm-white LED lighting with eight selectable modes, a built-in timer and end-to-end connections. They suit seasonal displays where a plug-in string and scheduled lighting are useful, but the adapter must be kept dry outdoors.

At a glance

Eight lighting modes are selected using the adapter button, according to the listing.
The built-in timer is described as keeping the lights on for 6 hours and off for 18 hours.
The memory function is claimed to retain the last mode setting.
The set is described as end-to-end connectable, with up to two sets permitted.

Price

$21.59Save 28%

Reference price: ~~$29.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

A 100-foot run with 300 LEDs gives buyers a long single string for seasonal decorating.
Eight modes, memory and a repeating timer provide several ways to manage the display without resetting the mode each day.
The listing says the set can connect end-to-end with one additional set.

Cons

A corded-electric design requires access to a suitable outlet and limits placement to the reach of the power lead.

Technical specifications

24 specifications

Identity and lighting
Brand	Joomer
Model	GP-SW290DC0209-IP44(US)-1CT
Light source	LED
Light colour	Warm White
Colour temperature	3000 Kelvin
Number of LEDs	300
Bulb shape	F10
Wattage	6 watts
Lighting modes	8 different lighting modes

Power and controls
Power configuration	Corded Electric
Wireless connection listed	Infrared
Control method listed	Remote

Dimensions and installation
Form factor	String
String length	100 feet
Lead cable	9.8FT
LED spacing	3.9 in LED
Dimensions listed	15.2 x 12.1 x 9.2 centimetres
Weight listed	608 g
End-to-end connection limit	Connect up to 2 sets

Materials and protection
Material	Plastic
Ingress protection rating listed	IP44
Water resistance listed	Water Resistant
Usage listed	Outdoor

Electrical details
Voltage and power consumption	120Vac 60Hz, 31V Power consumption: 6W

What to know before buying

Listing details to confirm

Protection details are inconsistent: the listing gives IP44 for the set, but its technical panel specifies IP65 for the bulbs and control box and IP44 for the adapter. Keep the adapter dry outdoors. The 100-foot total includes a stated 9.8-foot lead cable. The listing calls the set remote-controlled and lists infrared, while its operating instructions describe mode selection using the adapter button. Confirm the control arrangement and protection rating for the selected listing. Do not use a timed power outlet if relying on the built-in timer. The product instructions say to keep it out of reach of children under 3 and not to leave it unattended.

What’s in the box

Included

300-LED string lights
Adapter
User manual

Who is it for?

A good fit for

Decorating a tree, patio or yard with a long warm-white plug-in string.
Buyers who want multiple lighting modes and an integrated daily timer.
Displays that need a longer run and may benefit from connecting two sets.

Less suited to

Locations without convenient access to a power outlet.
Outdoor setups where the adapter cannot be kept dry.
Buyers who need a confirmed protection rating or clearly specified control method before purchase.

Joomer 100 ft 300-LED Warm White Christmas String Lights · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 3,095 ratings

5 stars75%75%
4 stars12%12%
3 stars5%5%
2 stars2%2%
1 star6%6%

Customer feedback describes the lights as bright and attractive, with appreciation for the warm colour and lighting patterns. Reports also include disappointment about battery life and mixed views on reliability. Because the listed product is corded electric, the battery-life concern may not apply to this configuration. The generally favourable aggregate ratings provide context, but do not establish consistent reliability for every set.

Positive themes

Customers report liking the brightness and appearance.
Customers appreciate the colour and lighting modes.

Negative themes

Customer feedback includes disappointment about battery life, although the listed configuration is corded electric.

Mixed feedback

Customer opinions about reliability are mixed.

Frequently asked questions

How long is the light string?

The listing specifies a 100-foot string and a 9.8-foot lead cable. It does not clarify whether the stated total length includes the lead.

Can these lights connect to another set?

The listing says the string is end-to-end connectable and allows up to two sets. Confirm that the selected listing has the compatible connectors.

How does the timer work?

The stated cycle is 6 hours on and 18 hours off. The listing instructs users to activate it by holding the adapter button for 3 seconds, and says not to use a timed power outlet for timing accuracy.

Are they suitable for outdoor use?

The listing describes outdoor use, but its protection ratings differ by component. It specifically says to keep the adapter dry, so plan the installation accordingly.