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.


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.

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
Sizes

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
Sizes
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.

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.
| Configuration | Model No. | Size | Selectable Wattage | Max Output | Efficacy |
|---|---|---|---|---|---|
| Sensor-Ready | ML-STRLS-4-40WSelect-5CCT | 2 ft | 21W / 26W / 34W / 40W | Up to 6,100 lm | Up to 170 lm/W |
| Sensor-Ready | ML-STRLS-4-53WSelect-5CCT | 4 ft | 34W / 40W / 47W / 53W | Up to 8,200 lm | Up to 170 lm/W |
| Sensor-Ready | ML-STRLS-8-80WSelect-5CCT | 8 ft | 40W / 53W / 68W / 80W | Up to 12,300 lm | Up to 170 lm/W |
| Standard | ML-STR-4-45WSelect-5CCT | 2 ft | 34W / 38W / 45W | Up to 5,850 lm | Up to 130 lm/W |
| Standard | ML-STR-4-54WSelect-5CCT | 4 ft | 38W / 46W / 54W | Up to 7,000 lm | Up to 130 lm/W |
| Standard | ML-STR-8-90WSelect-5CCT | 8 ft | 65W / 75W / 90W | Up to 12,000 lm | Up 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.

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

Warehouses

Utility & Back-of-House

Commercial Workspaces
Retrofit Strip Series — Product Cutsheet
Detailed specifications, configurations, dimensions and product information for the Retrofit Strip Series.
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.
