New generation office lighting combines state-of-the-art ActiveLED, electronic and architecturally pleasing mechanical design.

The ActiveLED^® OL4-IND Indirect Recessed Panel (Troffer) provides a soft, even illumination pattern while consuming at least 50-85 percent less energy than conventional lighting and additional energy savings can be achieved with optional light management.

With its patented design and superior LED elements, the ActiveLED OL4-IND Indirect Panel Light is a reliable light source with a 90,000-hour lumen life and zero light loss, making it a maintenance-free solution for applications where changing bulbs and ballasts can be costly and hazardous.

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

Product Overview, OL4-IND 2' x 4' Imperial Fixtures

Ringdale provides four wattage sizes of ActiveLED Indirect Recessed Panel Lights in the 2' x 4' ceiling grid format from 24 to 72 LED Watt for different applications and a choice of CCT Color Temperatures - 2700K, 3000K, 3500K, 4000K or 5000K:
(please refer to the OL2-IND series datasheet for details of the 2' x 2' lighting panels):

Imperial Product	Application	Fixture Wattage	Light Output	Overall Size
OL4-IN-5024	Office Light	26 Watt	1,953 Lumens	23-7/8" x 47-7/8"
OL4-IN-5036	Office Light	38 Watt	2,930 Lumens	23-7/8" x 47-7/8"
OL4-IN-5072/36	Office Light	72W of LEDs, 36W Fixture	2,930 Lumens	23-7/8" x 47-7/8"
OL4-IN-5048	Office Light	52 Watt	3,926 Lumens	23-7/8" x 47-7/8"
OL4-IN-5072	Office Light	79 Watt	5,861 Lumens	23-7/8" x 47-7/8"

Product Overview, OL4-IND Series 600mm x 1200mm Metric Fixtures

Ringdale provides four wattage sizes of ActiveLED Indirect Recessed Panel Lights in the 600mm x 1200mm ceiling grid format from 24 to 72 LED watts for different applications and a choice of CCT Color Temperatures - 2700K, 3000K, 3500K, 4000K or 5500K:
(please refer to the OL2-IND series datasheet for details of the 2' x 2' lighting panels):

Metric Product	Application	Fixture Wattage	Light Output	Overall Size
OL4M-IN-5024	Office Light	26 Watt	1,953 Lumens	595mm x 1195mm
OL4M-IN-5036	Office Light	38 Watt	2,930 Lumens	595mm x 1195mm
OL4M-IN-5072/36	Office Light	72W of LEDs, 36W Fixture	2,930 Lumens	595mm x 1195mm
OL4M-IN-5048	Office Light	52 Watt	3,926 Lumens	595mm x 1195mm
OL4M-IN-5072	Office Light	75 Watt	5,861 Lumens	595mm x 1195mm

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 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

Ringdale ActiveLED^® Recessed Panel fixtures act as a heat transfer barrier between office (air conditioned) space and ceiling (non-air conditioned) space.
Ringdale Panel Lights are half the height of a conventional fluorescent light fixture and half the weight putting less stress on the straps and strips holding the ceiling.

ActiveLED^® Warranties

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

Ringdale is an ISO 9001:2000 company, registered under BSI certificate FM-1880. Ringdale provides products of the highest quality designed and manufactured in Texas, USA and in the United Kingdom.

OL4-IND Series Sample Part Numbers - Imperial Models
OL4U-IN-A5024WH, 24 Watt CCT500K White
OL4U-IN-A5036WH, 36 Watt CCT500K White
OL4U-IN-A5048WH, 48 Watt CCT500K White
OL4U-IN-A5072WH, 72 Watt CCT500K White
OL4U-IN-A5072/36WH, 72/36 Watt CCT500K White

OL4-IND Series Sample Part Numbers - Metric Models:
OL4MU-IN-A5024WH, 24 Watt CCT500K White
OL4MU-IN-A5036WH, 36 Watt CCT500K White
OL4MU-IN-A5048WH, 48 Watt CCT500K White
OL4MU-IN-A5072WH, 72 Watt CCT500K White
OL4MU-IN-A5072/36WH, 72/36 Watt CCT500K White

Technical Information

Input Voltage:	• Auto-sensing, 100..277 Volts AC, 50/60Hz • Digital Power Source, dedicated circuit strongly recommended
Power Consumption: Power Statistics:	See table for details Dependent upon model: • 26 to 79 Watt Fixtures • 24 to 72 Watt LEDs
Ceiling Grid:	Imperial = 2' x 4' Metric = 600mm x 1200mm
Fixture Dimensions: Fixture Height:	Imperial = 23-7/8" x 47-7/8". Metric = 595mm x 1195mm. 4.25" (108.00mm)
Weight:	21 lbs, 9.5 Kg
Operating Temperature:	-40..+60° C (-40..+140° F)
CCT Color Temperatures:	Choice of 2700K, 3000K, 3500K, 4000K and 5000K, in accordance with ANSI C78.377A
Listings & Tests:	cUL listed driver, CE, suitable for interior locations. RoHS compliant. IP64 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.