Products

Retrofit Strip Series

Upgrade existing lighting. Keep the infrastructure.

High-performance LED retrofit solutions designed to modernize existing commercial and industrial strip-lighting installations with selectable performance, efficient illumination and intelligent control options.

Corso USA Retrofit Strip Series retrofit gear tray render on a navy background
Surface-mounted linear LED strip fixtures modernizing a light-industrial utility space

Overview

A retrofit platform for existing strip-lighting installations

The Retrofit Strip Series is engineered to modernize existing commercial and industrial strip-lighting installations. Its linear retrofit form is designed to update legacy strip housings with current LED performance while keeping the surrounding infrastructure in place.

Offered in 2 ft, 4 ft and 8 ft lengths across two configurations, the family pairs field-selectable wattage and 5CCT selectable color with 0-10V dimming and emergency-backup readiness. A Sensor-Ready configuration adds a recessed PIR sensor base for occupancy control.

  • Up to 12,300 lm output (Sensor-Ready)
  • Up to 170 lm/W efficacy (Sensor-Ready)
  • 120-277V universal voltage

Key Features

Retrofit performance with flexible control

Every Retrofit Strip combines selectable output, tunable color and control-ready options for lighting upgrades. The Sensor-Ready configuration reaches up to 12,300 lm at up to 170 lm/W; the Standard configuration reaches up to 12,000 lm at up to 130 lm/W.

Selectable Wattage

Field-selectable multi-wattage lets one fixture meet multiple power requirements on site.

5CCT Selectable

Choose 3000K, 3500K, 4000K, 5000K or 6500K directly at the fixture.

0-10V Dimming

Smooth, continuous 0-10V dimming for control systems and energy savings.

Emergency Backup Ready

Emergency-backup ready to support egress lighting requirements.

120-277V Operation

Universal 120-277V input supports a broad range of commercial and industrial installations.

Sensor-Ready Option

An available Sensor-Ready configuration adds a recessed PIR sensor base for occupancy control.

Two Retrofit Configurations

Choose the right retrofit configuration

The Retrofit Strip family is offered in two configurations for different project requirements — not one universally better than the other. Specifications below are taken directly from the cutsheet.

Corso Retrofit Strip Sensor-Ready render with a recessed PIR sensor base

Retrofit Strip — Sensor-Ready

The sensor-compatible retrofit configuration — adds a recessed PIR sensor base alongside selectable wattage and 5CCT, 0-10V dimming and emergency-backup readiness.

Up to 12,300 lm · up to 170 lm/W

Includes a recessed PIR sensor base for occupancy control across all three lengths.

Configurations

Sensor-Ready

Sizes

2 ft4 ft8 ft
Corso Retrofit Strip Standard render without a sensor base

Retrofit Strip — Standard

The standard retrofit configuration — selectable wattage and 5CCT with 0-10V dimming and emergency-backup readiness, without the PIR sensor base.

Up to 12,000 lm · up to 130 lm/W

A straightforward retrofit configuration without PIR Sensor-Ready capability.

Configurations

Standard

Sizes

2 ft4 ft8 ft

Retrofit

Built for Lighting Upgrades

The Retrofit Strip Series is intended for the modernization of existing commercial and industrial strip-lighting applications — bringing current LED performance to installations already in place.

  • Modernize Existing Installations

    Designed to update existing commercial and industrial strip-lighting applications with current LED technology.

  • Selectable Performance

    Field-selectable wattage and 5CCT let a single fixture match a range of upgrade specifications.

  • Keep the Infrastructure

    A linear retrofit form factor targets existing strip-lighting housings rather than a full fixture replacement.

Linear LED strip fixtures modernizing an existing industrial strip-lighting installation

Sensor-Ready Option

Sensor-Ready is an available configuration

Sensor-Ready models incorporate a recessed PIR sensor base for occupancy-control capability. It is an available configuration — the Standard configuration does not include the PIR sensor base.

Recessed PIR Sensor Base

Sensor-Ready models add a recessed PIR sensor base for a flush, unobtrusive occupancy sensor, using the same Sensor-Ready design language found across the Corso range.

  • Recessed PIR sensor base
  • Sensor-Ready models only

Occupancy Control

Occupancy-based control pairs with 0-10V dimming to reduce energy use in intermittently occupied industrial and utility spaces.

  • Occupancy-based switching
  • Works with 0-10V dimming

Available Configurations

Lengths and model numbers

Model numbers and performance figures below are transcribed directly from the Retrofit Strip cutsheet, grouped by Sensor-Ready and Standard configuration.

ConfigurationModel No.SizeSelectable WattageMax OutputEfficacy
Sensor-ReadyML-STRLS-4-40WSelect-5CCT2 ft21W / 26W / 34W / 40WUp to 6,100 lmUp to 170 lm/W
Sensor-ReadyML-STRLS-4-53WSelect-5CCT4 ft34W / 40W / 47W / 53WUp to 8,200 lmUp to 170 lm/W
Sensor-ReadyML-STRLS-8-80WSelect-5CCT8 ft40W / 53W / 68W / 80WUp to 12,300 lmUp to 170 lm/W
StandardML-STR-4-45WSelect-5CCT2 ft34W / 38W / 45WUp to 5,850 lmUp to 130 lm/W
StandardML-STR-4-54WSelect-5CCT4 ft38W / 46W / 54WUp to 7,000 lmUp to 130 lm/W
StandardML-STR-8-90WSelect-5CCT8 ft65W / 75W / 90WUp to 12,000 lmUp to 130 lm/W

All models: 5CCT selectable (3000K / 3500K / 4000K / 5000K / 6500K), 80 CRI, 120-277V, 0-10V dimming, emergency-backup ready and 5-year warranty. Sensor-Ready models add a recessed PIR sensor base. Model numbers and sizes are transcribed exactly as documented in the cutsheet.

Product Details

Engineered for straightforward retrofit installation

Practical construction details support retrofit installation into existing strip housings. Details below reflect the documented features of the cutsheet.

  • End Cap

    White metal end caps close each end of the retrofit strip housing.

  • Access Screw

    An access screw on the end cap provides access for wiring and service.

  • Side Knockout

    A side knockout provides an electrical entry point on the side of the housing.

  • Retrofit Construction

    Linear retrofit construction is designed to modernize existing strip-lighting housings.

Close-up of a Corso Retrofit Strip end cap, access screw and side knockout

Applications

Where the Retrofit Strip Series performs

Efficient linear illumination makes the series a fit for retrofitting existing strip lighting across commercial and industrial environments.

Industrial Facilities

Industrial Facilities

Warehouses

Warehouses

Utility & Back-of-House

Utility & Back-of-House

Commercial Workspaces

Commercial Workspaces

Retrofit Strip Series — Product Cutsheet

Detailed specifications, configurations, dimensions and product information for the Retrofit Strip Series.

Download Retrofit Cutsheet

Need Help Selecting the Right Fixture?

Distributors, contractors, specifiers and commercial project teams rely on Corso for expert guidance from specification through installation. Reach out and our team will help you find the right configuration.