1 / 7Joomer 100 ft 300-LED White Christmas String Lights
Joomer 100 ft 300-LED White Christmas String Lights are plug-in decorative lights with eight modes, a timer and end-to-end connection for up to two sets. The listing describes an automatic six-hours-on, 18-hours-off schedule and says the adapter should be kept dry outdoors.
At a glance
- Eight selectable lighting modes controlled by the adapter button.
- Timer is described as keeping the lights on for six hours and off for 18 hours.
- Memory function is claimed to retain the last selected mode.
- Male and female plugs allow connection of up to two sets, according to the listing.
- The adapter needs protection from water during outdoor use.
Reference price: $29.99
Price checked: Nov 12, 2026
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Pros and cons
Pros
- White 300-LED strand offers a stated 100-foot total length for decorating larger areas.
- The timer and remembered mode can reduce daily adjustment.
- Connectable design allows two sets to be joined for a longer display.
Cons
- The stated maximum of two connected sets limits expansion beyond that arrangement.
- The adapter must be kept dry outdoors, so its placement needs protection.
Technical specifications
20 specifications| Brand | Joomer |
|---|---|
| Model | GP-SW290DC0209-IP44(US)-1CT |
| Light colour | White |
| Light source | LED |
| Number of LEDs | 300 |
| Total length | 100ft |
|---|---|
| Lead cable | 9.8 ft |
| LED spacing | 3.9 in LED |
| Timer schedule | 6 hours "ON" and 18 hours "OFF" |
|---|---|
| Memory function | Built-in memory chip retains your last mode setting |
| Connection capability | Connect up to 2 sets |
|---|---|
| Wireless connection listed | USB |
| Control methods listed | Touch |
| Power configuration | Corded Electric |
|---|---|
| Voltage | 20 volts |
| Power consumption | 6W |
| Dimensions listed | 15.2 x 12.1 x 9.2 centimetres |
|---|---|
| Weight listed | 572 g |
| Water resistance listed | Water Resistant |
|---|---|
| IP rating details | IP Rate: IP65 Light bulbs and control box, IP44(Adapter) |
What to know before buying
Listing details to confirm
Listing details are inconsistent: the title and product description state 100ft, while item length is listed as 98 feet. Protection claims also differ between IP44 and IP65, with one specification assigning IP65 to the lights and control box and IP44 to the adapter. The details list 20 volts, while another specification states 120Vac 60Hz, 31V. USB and Touch appear in the connectivity fields despite the product being described as plug-in and adapter-button controlled. Confirm the selected listing's measurements, electrical details and protection rating before use, and keep the adapter dry. The timer instructions also say not to use timed power outlets.
What’s in the box
- 300-LED string lightsIncluded
- AdapterIncluded
- User manualCheck selected pack
- End-to-end plugsCheck selected pack
Check which accessories are included in your selected pack before buying.
Who is it for?
A good fit for
- Shoppers wanting white plug-in Christmas lights with multiple display modes and an automatic daily timer.
- Decorators who need a long strand and plan to connect no more than two sets.
- Indoor or outdoor decorating where the adapter can be kept dry.
Less suited to
- Buyers seeking battery-powered lights or a wireless lighting system.
- Installations needing more than two connected sets or an adapter exposed to water.
Customer reviews on Amazon
- 5 stars
75% 75% - 4 stars
12% 12% - 3 stars
5% 5% - 2 stars
2% 2% - 1 star
6% 6%
Customer feedback highlights perceived brightness, appearance, colour and lighting modes, while also reporting disappointment with battery life and mixed reliability opinions. The product is specified as corded electric, so battery-life criticism does not correspond to its stated power configuration. The positive comments about modes align with the listing's eight-mode claim, but do not establish performance for every installation.
Positive themes
- Customers describe the lights as bright and attractive.
- Customers report liking the colour and lighting modes.
Negative themes
- Customer feedback includes disappointment with battery life, despite the listing specifying corded electric power.
Mixed feedback
- Customer opinions on reliability are mixed.
Frequently asked questions
How long is the light string?
The title and product description state 100ft, while the item-length field says 98 feet. Confirm the length in the selected listing before planning a layout.
How does the timer work?
The listing describes a six-hours-on, 18-hours-off cycle. It says to activate the timer using the adapter button and advises against using a timed power outlet.
Can multiple strings be connected?
The listing says the end-to-end plugs support connecting up to two sets.
Are the lights suitable for outdoor use?
Outdoor use is claimed, but the protection ratings conflict. The adapter is specified as IP44 in one detail and should be kept dry, so check the exact rating and installation guidance.
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Offer details
- Keep the adapter dry when using the lights outdoors.
- The listed timer schedule is six hours on and 18 hours off. The instructions advise not to use timed power outlets.