What is King of Strings® KOS 138?

King of Strings® KOS 138 is an industry game-changing new product by S4
Lights, the decorative commercial lighting industry leader and pioneer. KOS 138
is both a standalone light kit and light string that can be controlled with a system
that outputs DMX.

Sparkling stars

Inside a KOS 138 String

• 16 Solid Colors (including true Warm White!)
• 45 Designer Color Combinations
• Up to 7 Effects for each color palette
• RGB color mixing for unique colors

An affordable and easy-to-use RGB light string!

KOS 138 is the “Goldilocks” of light strings. Not much more expensive and
as easy to use as a standard coupling light string and satisfies 90% of RGBW
scenarios while avoiding the cost and complexities of working with Individually Addressable RGB and RBGW Pixels.

KOS 138- Good for Installs. Good for Business.

It's an affordable RGBW offering that's...

  • Easy to install
  • Requires less maintenance
  • Give customers 138 looks for a comparable price as one look.

Download KOS Brochure

How KOS 138 Improves Your Bottom Line

  • SKU Management

    • KOS 138 can replace your multi-SKU inventory
    • KOS 138 allows you to eliminate the need to purchase small amounts of individual SKU’s to fill a job need
    • Requires less SKU organization and lifecycle management

  • Improved Product Offering

    • Give customers 138 looks for a comparable price as one look.

    • Get a controlled “show look” for less or use it to complement and support a more sophisticated show

  • Better Job Margins

    • Offer KOS as an upgrade and allow customers to change the scenes themselves
    • Offer scene changes as a service upcharge
See Color & Effect Combos

KOS 138 Collection

How to Shop KOS 138

Available in a wide variety of lights including mini lights, our best-selling NxG light strings, chic Eurostrings, and our most durable string, Everlastrings, there is a string for every installation type. Use KOS 138 on its own or use it with DMX to coordinate and support a more complex show.

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A wide variety

Choose your Lights

Available in our best-selling string constructions, wire colors, light counts, and bulb spacings. Epoxy-filled husks and above-industry-standard LEDs allow for weather-proof installation. Clear caps and interior frosting ensure the gorgeous colors S4 is known for stay consistent in brightness and hue, perfectly matching the rest of the S4 bulb and string offerings.

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garden of lights

The brains of the team

Choose your Power

The Power/Control Module provides rectified power and interprets the data signal provided by the controller. It’s easy to plug into the light strings and Scene Sender with secure twist-lock couplings to keep water out and
your display lit.

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Stand alone or support a show

Choose your Control

KOS 138 control options range from simple to advanced. Use Scene Senders for easy one-click selection or take the show to the next level and manage an entire show with a DMX controller for even more effects. All options pair with our LoRa Sender and Receiver to be able to change scenes remotely from a long-distance.

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