Imperial Solar Post Cap - Black SL211B

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Sale price$35.99 USD Regular price$44.99 USD
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New Feature! Warm and Cool Light Color Modes

The modern yet elegant Imperial Solar Post Cap offers a clean contemporary design that is unequaled in performance. Its rugged cast aluminum construction with powder-coated finish means no future painting. The Imperial will fit over an actual 4"x4" or 3.5"x3.5" post. (3.5"x3.5" adaptor included)

4.5" x 4.5" adaptor available - sold separately. Model #TRA45B 

Download our Instruction Manual

Post Sizing

Please measure your posts before purchasing

3.5" x 3.5" (4x4 Nominal)


4" x 4"


4.5" x 4.5"

Adapter Sold Separately

For 4.5" x 4.5" Posts - #TRA45B Adapter Sold Separately

Benefits of Classy Caps™ Solar Post Caps


Solar lighting save on energy costs. No need for wiring or timers. Lights turn on automatically at night.


The soft glow of renewable energy transforms the night into a magical and eco-friendly oasis.


An effective deterrent against intruders, illuminating the surroundings and creating a sense of security.


Quick and Easy installation eliminates the need to hire an electrician or handyman.

Customer Reviews

Based on 24 reviews
Teri Thiele
Solar Caps

They fit perfect and are a great addition to our patio.

Hello Teri, thank you for taking the time to leave a review on the Imperial Post Caps. We are so glad you are enjoying them!

Quality Product

I am extremely pleased with the solar post caps I ordered from Classy Caps. The post caps are a high quality, sturdy aluminum. I expect to enjoy the evening glow from the lights on my deck for many years to come.

Hello A.B. Thanks for the review on the Imperial Solar Lights. We are so glad you are enjoying them!

timothy gardner

Imperial Solar Post Cap - Black SL211B

Hey Timothy, thanks for leaving a review on the Imperial Solar Post Caps!

Charles Berry
Imperial Solar Black SL211B

These caps are very nice. Well made.I really like having two brightness choices. They are very easy to put on. One issue, I am installing them on metal posts. The screws will not go in correctly and snap off. I will be calling to get advice from Classy Caps.

Hi Charles, Thank you for taking the time to leave a review, we are happy to hear that you like the caps!
We are sorry to hear that you ran into this issue with installation. When installing these on metal posts it is very important to predrill holes for the screws. We will be in touch to arrange some new screws for you.

Linda Preminger
Upcycled solar path lighting

I bought the two-color Classy Caps to place on top of 4" aluminum fence post scraps from another project. I like the visual interest provided by lights of varying heights. The yellow lights give the perfect glow to a new flagstone wall and path in a previously neglected corner of the yard. I'm very happy with my purchase.

Hello Linda, what a very unique way to use the post caps. Thanks for including a photo of your beautiful setup so we get to see and Thank you for the great review!

Scott Hoefer
Great Product

To date NO issues !!!! Have the 4x4" and 5x5" perform better than I thought when I purchase these 4 + years ago. Customer service great !! Only wish they made an adapter for 6x4" post so I could mount a 5x5" solar post light. One day !!!

Hello Scott, thank you very much for the detailed 5* review! We are so glad you are continually enjoying your lights!


These are great!

Thank you for the great review!!