Joomer 88-B100-003 Battery Christmas String Lights, 33 ft, 100 LEDs

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Product guide

Joomer 88-B100-003 Battery Christmas String Lights, 33 ft, 100 LEDs

LEDs: Joomer 88-B100-003 battery Christmas string lights provide a 33-foot, 100-LED multicolor strand with eight lighting modes and a repeating timer. They run on four AA batteries, which are not included, so they can be placed without a nearby outlet but require batteries for operation.

At a glance

Battery power avoids the need for a nearby electrical outlet.
Eight selectable modes include steady-on and several changing effects.
The timer is described as running for six hours on and 18 hours off, with memory for the last mode.
The listing states a total 33-foot length, a 0.98-foot lead and 3.9-inch lamp spacing.

Price

$7.30Save 10%

Reference price: ~~$8.11~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Battery operation and a flexible cord allow placement away from an outlet.
Eight modes and a timer with memory offer multiple display choices and reduce daily resetting.

Cons

Four AA batteries are required and are not included, adding a separate ongoing power requirement.

Technical specifications

21 specifications

Identity and lighting
Brand	Joomer
Model	88-B100-003
Light source	LED
Number of LEDs	100
Light color	Multicolor
Style	String lights
Lighting modes	2-way switching,8 Modes

Power and controls
Power configuration	Battery Powered
Batteries required	4 AA batteries required.
Listed voltage	6 volts
Listed wattage	50 watts
Wireless connection listed	Button
Control methods listed	Touch

Dimensions and installation
String length	33 feet
Form factor	flexible cord
Dimensions listed	6.73 x 3.23 x 2.76 inches
Weight listed	1.12 ounces

Materials and protection
Material	Plastic
Water resistance listed	Waterproof
Ingress protection rating	IP65
Intended use	Outdoor

What to know before buying

The timer is described as cycling six hours on and 18 hours off. Turning the lights on or off or changing modes restarts the six-hour period. The supplied instructions warn against use above 104°F (40°C) and advise clearing dust and moisture from the battery case before installing batteries.

What’s in the box

Included

100 LED string lights (1)
User manual

Who is it for?

A good fit for

Decorating trees, windows, doors, fences or other spots without a convenient outlet.
Buyers wanting multicolor holiday lighting with several modes and a repeat timer.

Less suited to

Buyers who want included batteries or plug-in power.
Anyone needing dependable, confirmed brightness, battery runtime or long-term durability. Customer feedback on those areas is mixed.

Joomer 88-B100-003 Battery Christmas String Lights, 33 ft, 100 LEDs · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 5,159 ratings

5 stars74%74%
4 stars12%12%
3 stars6%6%
2 stars2%2%
1 star6%6%

Customer feedback often praises the lights' appearance and functionality, and some reports describe good performance in rain. Experiences are mixed for brightness, battery life, durability and value, including reports of dimming, frequent battery changes and early breakage. These concerns matter for a 100-LED battery-powered strand intended for seasonal or outdoor display, where brightness, runtime and reliability can affect whether it meets expectations. Aggregate ratings skew positive overall, but do not resolve those specific trade-offs.

Positive themes

Customers describe the lights as attractive and functional. Some report that they worked well in rain.

Negative themes

Some customers report dimming after several weeks, battery changes as often as twice a week, or breakage after a few days.

Mixed feedback

Brightness, battery life, durability and perceived value receive mixed feedback.

Frequently asked questions

What powers these lights?

The listing specifies four AA batteries, which are not included.

What does the timer do?

It is described as repeating a six-hour on period followed by 18 hours off. Changing modes or switching the lights on or off restarts the on period.

Can the lights be used outdoors?

The listing describes them as suitable for indoor and outdoor use and labels them waterproof. It also lists an IP65 rating. These are manufacturer claims, not independent verification.