4.5 Solar Post Cap Lights - Classy Caps - Black Aluminum Set of 2

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This set of two Classy Caps Imperial Black 4.5 Solar Post Cap Lights will fit your deck posts that measure 4.5" x 4.5". They have a low profile design, with rugged, maintenance-free powder coated cast aluminum housing, and non-yellowing, curved Plexi-Glas lenses. No electrical wiring or generator is required, all you need is the free solar power from the sun.

The solar fence post lights are easy to install, using the pre-drilled holes and provided hardware, and you will receive up to 10 hours of light duration at night.

You can see for yourself how great the solar cap lights look installed in the picture above, supplied to us by our great customer Brad in DC. He also caught a great sunset, good job Brad!

A Volume Discount of 10% to 20% will be automatically applied with a 3 Set Minimum Purchase of solar deck cap lights. See breakdown below.

With your purchase, you will receive a set of two Black 4 x 4 solar post caps in sealed packages, and two 4.5 x 4.5 mounting bases in a separate plastic bag to fit your 4.5" deck posts. When you order multiple sets, your bag of 4.5 mounting bases may be in a separate box, so be sure to open all boxes to locate your mounting bases.

To change the mounting base, you will need to remove the fixture head by twisting it to the Left, then remove the 4 screws located in the corners that hold the 4" mounting base to the post cap light. Line up the 4.5" mounting base to the screw holes, and reinstall the four screws. Don't forget to take the reflector from the 4 x 4 base, and place it in the indentation in the new 4.5 x 4.5 base. Push the Switch to AUTO, reattach the fixture head by twisting it to the Right, and install onto your post.

If you love this style but need a different color, we also have the Imperial 4.5x4.5 in a White or Bronze Aluminum powder coated finish.


  • 4.5 Solar Post Cap Lights, Black Classy Caps Imperial, Set of 2, Free Shipping
  • Made specifically to fit over actual 4.5 x 4.5 deck posts
  • Volume Discount: Order 3 Sets - 10%, Order 5 Sets - 15%, Order 10 Sets - 20%
  • Low profile solar cap light, measures 6" x 6" x 2.5"
  • Auto switch to turn your solar cap lights ON is under the fixture head lid
  • One 6000K-8000K Ultra Bright 0.5W White LED bulb in each solar light fixture
  • One long life 1.2V AA 800mah Ni-MH rechargeable battery included
  • Crystalline Solar Panel has 0.33 Watts, and will partially charge on cloudy days
  • Inserts are made from durable, non-yellowing Plexi-Glas
  • High Performance solar post cap lights stay lit for up to 10 hours
  • Lights up automatically every night with the auto/off switch
  • Will fit over an actual 4.5" x 4.5" deck post (4.5" x 4.5" adapter included with 4x4 solar light caps)
  • One year Warranty, excluding batteries
  • Manufactured by Classy Caps, with stringent quality control
One Year Limited Warranty from Classy Caps, excluding batteries after first 30 days.


  • Solar light 5

    Posted by Jim on Sep 23rd 2021

    They work great and look good!!

  • Caps look great 5

    Posted by Garrick Pelletier on Aug 18th 2021

    Solid construction, look great, lights shine bright from dusk to dawn.

  • 4.5 classy caps solar lights 5

    Posted by Arvin Davis on Apr 10th 2021

    Great quality and easy to install , creates a nice deck aura at night.Not to bright

  • Lights are too bright 3

    Posted by PeteB. on Dec 7th 2020

    Perfect fit for TREX posts. It would be nice if the light pointed down more since we mounted these on the stairs posts. The lights are irritating to look at and might be better if they had smoked glass. Though about returning them.

  • Above Expectations 5

    Posted by Richard Kerby on Sep 7th 2020

    These lights look great, fit perfectly and are very bright. We love em!

  • Post cap lights 5

    Posted by Jim Maeder on Sep 1st 2020

    Easy to install, they look great and stay on for the full night,

  • Classy Caps - 4.5" with Adpater 5

    Posted by Joe on Jul 27th 2020

    This product is exactly as advertised. We had difficulty locating Solar Post Caps for our Trex deck. We located the Classy Caps online, received the shipment without delay. Install was quick and easy. A definite upgrade to our evenings on the deck!

  • 4.5 Solar caps 5

    Posted by Mascitelli Michael A. on Jul 18th 2020

    Great product; look great with the Trex posts

  • Great for trex posts 5

    Posted by Unknown on Oct 2nd 2019

    The trex brand lights are very expensive and had poor reviews. These lights were very easy to change the adaptor to fit my trex deck posts. They are bright and lit up the entire night with little time to charge the first night.

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