ROMANJOY ZTD-02 Solar Post Cap Lights, 2 Pack

Pack: ROMANJOY ZTD-02 solar post cap lights are a two-piece set for outdoor post tops, with three selectable white tones and two brightness levels. The listing describes fit for 4-inch wood or vinyl posts, solar charging and automatic dusk-to-dawn switching. Performance depends on receiving adequate daylight.

At a glance

Three selectable tones: warm white, neutral white and cool white, each with two brightness settings.
Solar charging with automatic dusk-on and dawn-off operation, according to the listing.
The listing describes side-screw fitting for 4-inch wood or vinyl posts and possible top-secured use on 3.5-inch posts with a gap.
Two brightness levels are stated as 50% and 100%.
A built-in light sensor is claimed to control automatic switching.

Price

£9.77Save 15%

Reference price: ~~£11.49~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Selectable colour and brightness settings allow different light tones and output levels.
Solar power and claimed automatic dusk-to-dawn operation avoid routine manual switching.
The listing specifies compatibility with 4-inch wood or vinyl posts and gives a base inner dimension.

Cons

Solar charging and run time depend on available sunlight, so output may be reduced after cloudy or rainy periods.

Technical specifications

26 specifications

Identity
Brand	ROMANJOY
Model	ZTD-02
Set size	2
Product type	Post Light
Colour	Clear - Hammered
Style	Modern

Lighting
Light source	LED
Number of lights	24
Light colours	Warm White/Neutral White/Cool White
Maximum light output	800 Lumens
Luminous flux	800 Lumen
Lighting method	Uplight
Bulb base	G4
Efficiency	E

Power and controls
Power	Solar Powered
Control method	Push Button

Dimensions and installation
Dimensions	10.6L x 10.6W x 4.3H centimetres
Mounting type	Pole Mount
Fixture type	Removable
Assembly required	Yes

Materials and protection
Material	Acrylonitrile Butadiene Styrene
Shade colour	Transparent
Finish	Hammered
Water resistance listed	Waterproof

Use
Indoor/outdoor use	Outdoor
Specific uses	Deck, Fence, Garden, Walkway, Yard

What to know before buying

For the stated run-time claims, the listing specifies 6-8 hours of solar charging, 12+ hours at 100% brightness and 20+ hours at 50% brightness. It also warns that insufficient sunlight can reduce performance.
Place the solar panel in a well-lit area, keep its surface clean and avoid locations exposed to strong artificial light at night, as advised by the listing.
The listing says the base inner dimension is 4.06" x 4.06" and describes fitting 4-inch posts with side screws. It says 3.5-inch posts may leave a gap when secured from the top.

Listing details to confirm

The listed 800 Lumen and 800 Lumens output claims use different unit wording, while the technical details also list 24 lights and a G4 bulb base. The listing does not clarify how these specifications relate to the solar post-cap design. Check the selected listing and post dimensions before purchase.

What’s in the box

Included

Mounting hardware

Who is it for?

A good fit for

Buyers lighting the tops of compatible fence, deck or garden posts without wiring.
Those who want to choose between warm, neutral or cool white and two brightness settings.
Installations with enough daylight for solar charging and no strong night-time light near the sensor.

Less suited to

Buyers who need guaranteed all-night output regardless of weather or sunlight.
Posts outside the listed fit guidance, or anyone requiring a precisely flush fit on 3.5-inch posts.

ROMANJOY ZTD-02 Solar Post Cap Lights, 2 Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 83 ratings

5 stars84%84%
4 stars10%10%
3 stars4%4%
2 stars1%1%
1 star1%1%

Customer feedback describes the lights as bright, attractive and easy to install, with positive comments about quality and use in side yards. Some customer comments say they stayed lit through the night, including at full brightness in summer. These are reported experiences rather than a guarantee. Because the lights rely on solar charging, available daylight and the chosen brightness are relevant to buyers expecting overnight illumination.

Positive themes

Customer feedback praises brightness, appearance, installation and perceived quality.
Customers report that the lights worked well and, in some cases, remained on through the night.

Frequently asked questions

What posts does the listing say these lights fit?

The listing describes a base inner dimension of 4.06" x 4.06" for 4-inch wood or vinyl posts, secured with side screws. It also mentions 3.5-inch posts when a gap is acceptable and the base is secured from the top.

Can the light colour and brightness be changed?

The listing claims warm, neutral and cool white tones, each with 50% and 100% brightness settings. It says to twist off the lamp body to access the button and cycle through the options.

How long do the lights operate after charging?

The listing claims 12+ hours at 100% brightness and 20+ hours at 50% after 6-8 hours of solar charging. It cautions that insufficient sunlight can reduce charging and light performance.

Do they switch on and off automatically?

The listing describes a built-in light sensor that turns the lights on at dusk and off at dawn. It advises avoiding places with strong lighting at night.