HL4 Series ActiveLED® High Bay Linear Lighting, 4 foot long and up to 288 Watt power consumption

  • HL4 Series of ActiveLED® Linear High Bay Lighting, up to 299 Watt fixtures for any warehouse, retail or gymnasium environment Lights - see table for details

  • High Efficacy with 150 lumen per input watt and lumen lifetime of 90,000 hours (90% Luminous Flux)

  • Light output equivalence - see table for details

  • Easy replacement for conventional Fluorescent and Metal Halide High Bay light fittings

  • ActiveLED® - Environmentally Safe Lighting:
    • Zero mercury content
    • Eliminates disposal of
    hazardous materials
    • Facilitates LEED® points

  • HL4 Series fixtures include support for the ActiveLED Digital Management capability as standard.
    Optional ActiveLED controls for additional energy savings:
    • Motion Sensor
    • Daylight Sensor
    • Digital Rotary Dimmer
    • LightSpace Management
    • Battery Backup for
    emergency lighting

    A 292 Watt HL4 light fixture operated with an ActiveLED Motion Sensor can be programmed to go to a programmable ActiveRest light output.

  • About half the "thickness" of traditional fluorescent fixtures minimizes the required vertical installation space

  • Choice in all models of CCT color temperatures - 2700K, 3000K, 3500K, 4000K or 5000K.

    LUM-INTENSETM by ActiveLED® is a new LED luminaire lighting technology that provides more light (more lumen per Watt) and less glare - punches an intense amount of light out of a smaller package.

HL4 Series of ActiveLED® High Bay Linear Lighting, up to 288 Watt fixtures for any warehouse, retail or gymnasium environment

New generation office lighting combines state-of-the-art LED, electronic and mechanical design, choice of 144 or 288 Watt models, indoor applications

The ActiveLED® HL4 Series Linear High Bay Lighting consumes at least 50-85 percent less energy than conventional lighting and additional energy savings can be achieved with the optional lighting management.

With its patented design and superior LED elements, the ActiveLED HL4 Linear High Bay Lighting is a reliable light source with a 90,000-hour lumen life, making it a maintenance-free solution for applications where changing bulbs and ballasts can be hazardous and expensive.

Significant savings from not having to maintain and renew ballasts and fluorescent tubes in light fixtures, as well as reduced heat generation and energy use justify the initial outlay.

ActiveLED® HL4 Series Product Overview

Ringdale provides a comprehensive range of ActiveLED HL4 Linear High Bay Fixtures with different wattages for varying applications, all available in a choice of CCT color temperatures - 2700K, 3000K, 3500K, 4000K and 5000K.
All HL4 fixtures include support for the ActiveLED Digital Management capability plus optional support for optional Battery Back-Up (BBU):

Product Code


Fixture Wattage

Light Output

Suggested Mount Height


High Bay

96 Watt

14,000 Lumens

to 20 feet


High Bay

144 Watt

21,500 Lumens

to 30 feet


High Bay

288 Watt

42,000 Lumens

to 40 feet

ActiveLED® Technology

Ringdale uses the latest in energy efficient LEDs and LED Modules producing equal or greater light output than fluorescent light fixtures. Our state-of-the-art electronics monitor current and temperature of the electronics substrate to assure maximum performance under the prevailing environmental conditions and a Lumen Lifetime of 90,000 hours (90% Luminous Flux).

ActiveLED® Diffuser Technology

We use state-of-the-art diffuser technology with a minimal amount of light loss in the fixture providing for maximum lighting efficiency.

ActiveLED® Architectural Features

ActiveLED Surface-Mounted Ceiling Lights are half the height of a conventional fluorescent light fixture and half the weight, putting less stress on the ceiling structure.

ActiveLED® Warranties

We provide mechanically robust indoor and outdoor lighting systems; our warranties are 10 years on LED elements, fixtures and drivers / power supplies.

Ringdale is an ISO 9001:2015 company. Ringdale provides products of the highest quality designed and manufactured in Texas, USA and in the United Kingdom.

ActiveLED® HL4-SM Sample Part Numbers:

HL4U-S-K50R96WH, 96 Watt CCT5000K, White
HL4U-S-K50R144WH, 144 Watt CCT5000K, White
HL4U-S-K50R288WH, 288 Watt CCT5000K, White

Technical Information

Input Voltage:• Auto-sensing 120..277 Volts AC, 50/60 Hz
• Digital Power Source, dedicated circuit strongly recommended
Power Statistics:Dependent upon fixture model:
• 96, 144 or 288 Watt versions
CCT Color Temperatures:Choice of 2700K, 3000K, 3500K, 4000K and 5000K, in accordance with ANSI C78.377A
Operating Temperature:-58° F to +149° F (-50° to +65° C)
Mounting:Suspended by four Eyelets from underneath the ceiling / roof structure
or pendant mount option
Fixture Dimensions:

19.29" x 47.75" (49.0 x 121.3 cm)

5.12" (13.0cm)
Weight:22.5 lb (10.2 Kg)
Listings and Tests:cUL listed driver, CE, suitable for interior locations.
RoHS compliant. IP61 Rated optical assembly.
LM-79 and LM-80 info available.
Conforms to FCC Part 15.19 Subpart B Class A.
Made in USA - ARRA Compliant.

Caution! All specifications published herein are subject to change without notice. See website ActiveLED.com for Terms and Conditions of use of the website and the information provided herein. See Ringdale website on www.ringdale-technology.com for Terms and Condtions of Sale and Service.

+44 (0)844 264 1570