4.5 Solar Cap Lights Fit 4.5 Inch Posts - White Aluminum Set of 2

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This set of two Classy Caps Imperial White 4.5 Solar Cap Lights are solar post cap lights made to fit your deck posts that measure 4.5 x 4.5 inch outside to outside edge. They have a low profile design, with rugged, maintenance-free powder coated cast aluminum housing, and non-yellowing Plexi-Glas curved lenses.

You can install solar post cap lights in any area that receives around 8 hours of sunshine, which will give you up to 10 hours of light duration at night.

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

With your purchase, you will receive a set of two White 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 size for solar post cap lights 4.5 x 4.5 in a Black or Bronze powder coated finish.


  • Solar Post Cap Lights, White 4.5 x 4.5 Classy Caps Imperial, Set of 2
  • Free Shipping included for the 48 contiguous United States
  • Made specifically to fit over 4.5 inch decking posts
  • Volume Discount: Order 3 Sets - 10%, Order 5 Sets - 15%, Order 10 Sets - 20%
  • Low profile, measures 6" x 6" x 2.5"
  • 5000K Cool White LED bulb, with 15 lumens of light output, in each solar light fixture
  • One 1.2V AA 800mah Ni-MH rechargeable battery included in each fixture, should last between one and two years before needing to be replaced
  • Crystalline Solar Panel has 0.33 Watts, and will partially charge on cloudy days
  • Inserts are made from durable non-yellowing and curved Plexi-Glas
  • High Performance solar fence post 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 lights 5

    Posted by Patty Stockhaus on Jul 16th 2020

    Very impressed... Fits my Trex post...High quality Aluminum lights...Gives off a nice light....

  • Post Lights 5

    Posted by Tom Fralinger on Jul 10th 2020

    Post lights are well built, fit nicely on posts and emit a nice light.

  • Love them so far 5

    Posted by Nick from Oshkosh, WI on May 12th 2020

    These are much higher quality than the plastic ones you find at the big box stores. These are aluminum and more sturdy. We just put them up and love them so far... LOVE the light they give off at night. They fit perfectly on our Trex deck posts and are very modern looking. Highly recommend at this point

  • Streamlined, bright and beautiful. 5

    Posted by Unknown on Apr 24th 2020

    the best


    Posted by Unknown on Oct 30th 2019

    I spent a long time looking for the perfect solar post caps.
    These lights look and work great and stay illuminated all night. Couldn't be happier for the final part of a large stair project

  • Love love love! 5

    Posted by Unknown on Sep 26th 2019

    These worked perfectly for our Trex posts! They look amazing! Easy to install and very reasonably priced.

  • Just what I wanted.. 5

    Posted by Unknown on Sep 20th 2019

    Seem to be good quality at a fair price..

  • Top Quality, and they fit TREX 4.5 Posts! 4

    Posted by Wayne Bartz on Nov 13th 2018

    I also replaced my deck and railings with Trex. These are superb quality, but my first experience with rechargeable batteries. Found out they do not work well in freezing climates. Quality makes up for it !

  • Excellent purchase! 5

    Posted by Unknown on Jun 27th 2018

    Very easy to install and they look great! The lights are exactly what I was looking for!

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