NIORSUN 12-Pack Solar Post Cap Lights, Cool White

NIORSUN solar post cap lights are a 12-pack of cool-white LED fixtures for outdoor fence and deck posts. The listing claims 20-lumen output per light and more than 10 hours of illumination after 4–6 hours of direct sunlight, though fit feedback is mixed, so compare the bases with your posts before buying.

At a glance

Cool-white light is listed at 6500 Kelvin, with a claimed 20-lumen output per light.
Listing says direct sunlight for 4–6 hours can support over 10 hours of night illumination.
Described as compatible with standard 4x4 wood posts and 4x4 or 5x5 vinyl post caps.
Solar-powered outdoor fixtures are promoted for decks, fences, gardens, patios, and yards.

Price

$47.49Save 21%

Reference price: ~~$59.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

A 12-pack can outfit multiple posts in one purchase.
Solar power and the claimed wire-free installation avoid running electrical wiring to each post.
Customer feedback praises appearance, ease of installation, and overnight lighting duration.

Cons

The listed output is 20 lumens, which is suited to decorative post lighting rather than strong area illumination.

Technical specifications

27 specifications

Identity
Brand	NIORSUN
Model	16280LGTF
Pack size	12
Color	White
Light color	cool white
Color temperature	6500 Kelvin

Light and power
Light source	LED
Number of light sources	8
Brightness	20 lm
Maximum light output	20 lumens
Power configuration	Solar Powered
Voltage	2 volts
Control methods listed	Touch

Dimensions and installation
Mounting types listed	Deck Mount
Installation type	Surface Mount
Form factor	Square
Dimensions	4.25"L x 4.25"W x 2.28"H
Weight listed	2.59 kg
Claimed post compatibility	standard 4x4 (actual size: 3.5x3.5) wooden posts, or 4x4, 5x5 vinyl post caps

Materials and protection
Material listed	Polyethylene
Shade material	Plastic
Water resistance listed	Waterproof
Protection rating claim	IP64

Other listed details
Outdoor use	Outdoor
Light fixture form	Post Light
Bulb base	GU10
Warranty description	1 year manufacturer.

What to know before buying

The listing gives several post-fit claims, including standard 4x4 wood posts with an actual size of 3.5x3.5 inches and 4x4 or 5x5 vinyl caps. Customer feedback reports both good fits and posts the lights did not fit, so compare actual cap dimensions and mounting bases before ordering. The claimed over-10-hour runtime depends on 4–6 hours of direct sunlight.

What’s in the box

12 solar post cap lightsCheck selected pack
Mounting hardwareIncluded

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Buyers wanting a matching set of solar cap lights for outdoor fence or deck posts.
People seeking cool-white accent lighting without wiring, with sunlight available for charging.

Less suited to

Buyers who need bright area or task lighting rather than low-output post accents.
Buyers unable to confirm that the fixture bases fit their specific post caps.

NIORSUN 12-Pack Solar Post Cap Lights, Cool White · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 693 ratings

5 stars74%74%
4 stars10%10%
3 stars6%6%
2 stars4%4%
1 star6%6%

Customer feedback is generally favorable about quality, appearance, brightness, installation, reliability, and lighting through the night. Those impressions suit the listed solar post-light role, although the stated output is only 20 lumens per light and does not indicate strong area lighting. Fit is a meaningful mixed point: some customers report a good match while others say the lights did not fit their posts, so measure before choosing.

Positive themes

Customers praise the appearance, ease of installation, and reported overnight operation.

Mixed feedback

Fit feedback is mixed, with reports of both suitable matches and posts the fixtures would not fit.

Frequently asked questions

How bright are these solar post cap lights?

The listing specifies 20 lumens and cool-white light at 6500 Kelvin. That output is for decorative post lighting rather than broad-area illumination.

What post sizes are listed as compatible?

The listing names standard 4x4 wooden posts with an actual size of 3.5x3.5 inches, plus 4x4 and 5x5 vinyl post caps. Customer fit reports are mixed, so compare the base and cap measurements before purchase.

How long do the lights run at night?

The listing claims over 10 hours of continuous illumination after 4–6 hours of charging in direct sunlight. Actual conditions may affect charging and runtime.

Are mounting screws included?

Mounting Hardware is listed as an included component, and the installation description refers to mounting screws.