LED OPTO INDICATION SOLUTIONS
In business since 1938, Dialight has been pioneering some of the most innovative applications in LED technology since it was developed in the early 1970s. Our LED products for the electronics industry have given engineers better ways to indicate status on all kinds of equipment.

We put our expertise to work by designing the most reliable and cost-effective LED products available. As a vertically integrated supplier, Dialight has the resources to design and produce everything in-house, supported by a global sales and distribution network. So if you're looking for the best in LEDs, look no further than Dialight.
> 521 Series LED Discrete Through Hole Products
The 521 series discrete through hole products offer a wide variety of LEDs from 2mm to 5mm. Single Color and Bi-Color LEDs- Red, yellow green and orange LEDs available in diffused, tinted non-diffused or water clear configurations. Bi-Color packages are available in 2-leaded or 3-leaded versions.
> 597 Series chip LED / PLCC SMD LEDs
Our microLED offering of discrete SMT LEDs includes a wide range of packages in chip-LED and PLCC configurations with a full range of LED options and colors including the latest AllnGaP and InGaN technology. They are available as lead-free and RoHS compliant and packaging options of strips of 20 pieces each for prototyping or 7" reels for production runs.
> 598 Series chip LED style SMD LEDs
Dialight has expanded our microLED offering of surface mount (SMD) LEDs with the introduction of our chip LED style 598 series. These devices are avaialble in 10 different package configurations, each with a wide-selection of LED options including the latest InGaN and AllnGap technologies.
> 2mm LED Through Hole Products
The 2mm LED through hole products includes 555 series , 570 series and 571 series circuit board indicators. Custom color combinations available in the 570 and 571 series. 555 series consists of single side view and top view and quad side view and top view products.
> 3mm LED Through Hole Products
The 3mm LED through hole products include the 551 series, 553 series, 564 series, 568 series and the 569 series. A wide variety of circuit board indicators in single-level - horizontal, bi-level, tri-level and quad-level - vertical arrays are available.
> 4mm & Rectangular LED Through Hole Products
The 4mm and rectangular LED through hole products include 550 series, 552 series, 561 series, 566 series, 567 series and 568 series. Single level - right angle and bi-level and quad level arrays available. Rectangular LEDs available in 2x4mm and 2x5mm configurations. Custom color combinations available.
> 5mm LED Through Hole Products
The 5mm LED through hole products includes the 550 series, 552 series and 561 series. Various housing configurations available including backlighting, 3-leaded, dual-block, tri-block & quad block versions in single color and bi-color. Custom color combinations available.
> Series 591 3mm Prism® Surface Mount Indicators
The 591 Single-level Prism is available in 3mm round lens or square lens configurations. 12 or more LED color options avialable including bi-color and tri-color. Product is lead free and RoHS Compliant with MSL of 2 or 2A. Packaging options includes prototype strip of 20 pieces each and 7" - 400 peices per reel or 13" - 1600 peices per reel with a 16mm wide taped carrier.
> Series 592 3mm Bi-Level Prism® Surface Mount Indicators
The 592 Bi-level Prism is available in 11 LED color options including bi-color and tri-color. There are numerous color combinations that can be supplied in any of the two positions from top to bottom depending upon customers needs. Product is lead free and RoHS Compliant with MSL of 2 or 2A. Packaging options includes prototype strip of 10 pieces each and 13" reels with a 32mm wide taped carrier and 360 pieces/reel for production.
> Series 593 3mm Tri-Level Prism® Surface Mount Indicators
The 593 Tri level Prism is available in 11 LED color options including bi-color and tri-color. There are numerous color combinations that can be supplied in any of the three positions from top to bottom depending upon customers needs. Product is lead free and RoHS Compliant with MSL of 2. Packaging options includes prototype strip of 5 pieces each and 13" reels with a 56mm wide taped carrier and 150 pieces/reel for production.
> Series 595 2mm Single Prism® Surface Mount Indicators
The 595 Single-level Prism is available in 2mm lens configurations. 5 LED color options avialable in single color. Product is lead free and RoHS Compliant with MSL of 2A or 3. Packaging options includes prototype strip of 20 pieces each and 7" - 600 peices per reel or 13" - 2300 peices per reel with a 12mm wide taped carrier.
> Vertical Optical Lightpipes
Vertical light pipes provide an excellent solution for products that contain a PCB that is parallel to the panel in need of indication. These UL94-V0 Water Clear Polycarbonate light pipes are secured to the PCB using a custom snap-fit base that is easy to install. Vertical light pipes are ideal for building automation and other industrial applications where light needs to be transferred from a parallel PC board, or the environment is subject to shock and vibration.
> Vertical Array Right Angle Optical Lightpipes
Bi-level, tri-level and quad level configurations available in various pitches between elements. Lightpipe material is water clear transmissive polycarbonate rated UL94-V0 and has a 35% oxygen index. Dialight can provide custom solutions for your applications.
> Single Element Optical Lightpipes
Available in PCB mounted and panel mounted configurations. Various diameters from 1.1mm to 5.8mm round. Right angle, rectangular, and illuminating corner versions available. Lightpipe material is water clear transmissive polycarbonate rated UL94-V0 and has a 35% oxygen index.
> Horizontal Array Right Angle Optical Lightpipes
Horizontal arrays are available in a variety of forms from 2 to 12 elements in various heights from PCB and also as illuminating corners. Lightpipe material is water clear transmissive polycarbonate rated UL94-V0 and has a 35% oxygen index. Dialight can provide custom solutions for your applications.
> Multi Array Optical Lightpipes
Available in various vertical and horizontal arrays, panel-mounted or PCB board mounted. Custom configurations available. Lightpipe material is water clear transmissive polycarbonate rated UL94-V0 and has a 35% oxygen index. Dialight can provide custom solutions for your applications.
> 556 Series 1" Mount LED Panel Mount Indicators
Daylight viewable indicators available in either dome or flat lens configuration provide uniform illumination. UL recognized, NEMA 4x tamper proof design available in a variety of voltage ranges - 12 VDC through 125 VDC and 125 and 230 VAC.
> 657 Series Watertight 11/16" LED Panel Mount Indicator
Featuring a high-impact, UV-stabilized lens material, the 657 Series is available with domed, flat or right-angle lens options. Completely sealed and potted, these rugged indicators are highly suitable for outdoor applications.
> 557 Series 0.7" Mount LED Panel Mount Indicators
Low profile lens design is daylight viewable, water tight (MIL-L-3661) and tamper proof and comes with lead wire for easy assemble. The single color version is designed for 5, 12 and 24 VDC input; a bi-color version is also available.
> 600 Series 5mm-12mm Mounting Hole LED Indicators
8 different mounting sizes are available with operating voltage ranging from 2 VDC to 6, 12 and 24 VDC with integral resistors.
> Snap In Panel Mount Indicators (558 & 559 Series)
Designed to snap-in to either a 0.156" (558 series) or 0.250" (559 series) mounting hole, these indicators are available in a variety of LEDs from daylight viewable to integral resistor. Termination options, 6" and 14" lead wire or straight terminals.
> 249 Series LED Panel Mount Indicators
> T 1 3/4 LED Replacement Bulbs
Available in midget flange, wedge base (T5), and bi-pin configurations and designed to operate at 6, 14 and 28 VDC. Both single and multi-chip versions are offered some with the non-polarized option.
> T 2 LED Replacement Bulbs
The T 2 telephone slide base lamp (type 3) is designed for 24 volt AC or DC operation.
> T 3 1/4 LED Replacement Bulbs
Miniature bayonet or screw and wedge base (T10) are offered. Single and cluster arrangements, daylight viewable with operations up to 125 VAC. Some are available with a variable input of 6-36 VDC.
> 15mm LED Replacement Bulbs
7 LED cluster lamp, single contact bayonet base designed for 12 and 24 VDC operation.
> Neon / Incandescent Indicators
Lamp Holders
Lamp Holders
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DataLamp Series
DataLamp Series
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249 Series Neon Indicator
249 Series Neon Indicator
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Military Indicators

> Military Designated Lenses
Dialight has a complete product line of Military Designated Lenses in addition to our Lamp Holders and Indicators. View our Military Cross Reference Guide below:
> Military Designated Lamp Holders
> Press-To-Test Indicators
> Military Designated Datalamp Series
illumination