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4 in. x 4 in. Solar Post Cap Light - White - 3 LED Colors

Ultra Bright Tech
List price: $119.95  
You save: $40.00 (33%)
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4 in. x 4 in. Solar Post Cap Light - with Color Changeable LEDs


Add safety, elegance and ambience to your deck without the hassle of electrical wiring! Ultra Bright's 4 in. x 4 in. Solar Post Cap Light is the most advanced, powerful, robust, solar post cap light available. Patented magnet technology allows users to easily adjust between 7-brightness levels & 3 LED colors (White, Blue & Amber) to meet seasonal performance, brightness, & run time expectation or personal preference. Hold a magnet for 5 seconds over the solar panel and the solar post cap light will change between the illuminating colors. Swipe the magnet quickly over the solar panel to adjust between 7 brightness levels or "OFF" on any of the colors.

Ultra Bright's 4 in. x 4 in. Solar Post Cap Light is made to last. Advanced ASA UV resistant composite material, user-replaceable advanced lithium phosphate battery (included), fully water-proof IP 68 electronics, and tempered glass laminated solar panel ensure longevity.

Spare batteries and magnets for the Solar Post Cap Light can be ordered from this page under the Accessories tab.


  • Vinyl Post: (Actual 4 in. x 4 in.)


4 in. x 4 in. Solar Post Cap Light

The perfect hassle free way to light up your fence posts, railing posts & deck!

Product Highlights:

36 Ultra Bright LEDs

High Power Solar Panel

Color Changeable

Long Run Time

Long Service Life

Durable Construction

Waterproof Electronics

LiFePO4 Batteries

Changeable Batteries

Key Features & Benefits:

8-130 Hour Run Time

Adjustable Brightness

10-100 Lumens

Fresh Water Rated

Salt Water Rated

Changeable Batteries


  • Composite
Post Sizes:
  • Vinyl - 4” x 4”
Product color:
  • White
Sort by:
The best solar cap lights out there! by
Over the past 2 years, I've ordered about 12-14 of these solar caps, and while not cheap, they are superior to anything else out there! My 2 year old caps are going strong, other than 2 batteries that now needed to be replaced, and one unit that seems to...
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Awesome by
Just bought these lights and they are great!
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great by
Great Lights, love them!
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Best lights by
I’ve had the plastic deck post LED lights in the past. They just don’t hold up and if you get two years you’re lucky. These Ultrabrighttech lights are well made and hopefully I’ll get years out of them . They look fantastic! The 3 different colors...
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Work fantastic! Ordered 4 (out of 12 total post caps needed) to try them. They put out a tremendous amount of light; lighting up the deck and ground around the deck/driveway. I wanted to try these as an alternative to the wired systems for the Timbertech...
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Solar post cap light is excellent.
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Solar Post Cap Lights by
I purchase 3 of these lights for our vinyl fence. They are beautiful and the best quality lights around. We have received so many compliments on our lights. I will be purchasing a few more for the backyard. I would give them a 6 star rating...
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Excellent light by
I am very pleased with the solar light I purchased from Ultra Bright Tech. It lights up our boat dock very well for a wireless light. I would recommend this to anyone needing to light up an area without available power. We have ours on the brightest setting and its...
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Great Quality by
I could not find decent solar lights for my Trek railing in stores. These lights are very high quality, offer the most options (light color and brightness). You will not be disappointed.
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Great product, bright light, easy to install by
tWe are very pleased with the Solar Post Cap Lights we recently installed on our dock walkway. This is the brightest LED solar light option we have found, and it works beautifully. I found this easy to prep and install. We plan to add additional lights soon. Thank you...
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Superior quality to anything else I've used. Very bright, will order more!
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