Luckylight manufactures a complete range of 7-segment LED displays — also known as LED numeric displays or seven-segment displays — in both through-hole and surface-mount packages, from standard brightness to ultra-bright.

Character heights range from compact 0.2 inch up to large-format sizes, including popular options such as 0.3", 0.36", 0.4", 0.56", 0.8", 1.0" and 1.5". Digit configurations cover 1-digit, 2-digit, 3-digit, 4-digit, 5-digit and 6-digit displays. Both common anode and common cathode circuits are available.

Emitting colors include red, green, yellow, white, blue and orange, with bi-color and tri-color versions for applications that need multiple display states in a single package. A wide choice of face and segment color combinations — gray face with white segments, black face with white segments, or black/gray face with colored segments — lets designers balance contrast, readability and front-panel appearance.

The range covers both industrial-grade displays with wide operating temperature ranges for test & measurement, instrumentation and telecom systems, and commercial/consumer-grade displays for POS terminals, home appliances, office and medical equipment.

Customization on Request: Character heights, colors, specialized pin lengths, and standoff heights and spacers can all be tailored to fit your specific enclosure design — send us your drawing or requirements for a quick feasibility review.

Find Your Part: Use the parametric filters below to narrow your search by digit number, character height, polarity, face color and emitting color.

Select Series

Part Number View Picture Emitting Color

Face Color

Digit Height

Polarity Digit Number

λd(nm)
CIE(x,y)

DataSheet
KW3-307XXX Series KW3-307ARD
Deep Red
Black 8mm (0.31") Common Anode Three Digit 630 Download
KW3-307XXX Series KW3-307CRD
Deep Red
Black 8mm (0.31") Common Cathode Three Digit 630 Download
KW3-307XXX Series KD3-307CGD
Yellow Green
Black 8mm (0.31") Common Anode Three Digit 572 Download
KW3-307XXX Series KD3-307AGD
Yellow Green
Black 8mm (0.31") Common Anode Three Digit 572 Download
KW3-307XXX Series KD3-307CRD
Red
Black 8mm (0.31") Common Cathode Three Digit 630 Download
KW3-307XXX Series KD3-307ARD
Red
Black 8mm (0.31") Common Anode Three Digit 630 Download
KD3‐56BXXX Series KD3-56BARD-S
Red
Black 14.20mm (0.56") Common Anode Three Digit 630 Download
KD3‐56BXXX Series KD3-56BAGD-S
Yellow Green
Black 14.20mm (0.56") Common Anode Three Digit 572 Download
KD3‐56BXXX Series KD3-56BCGD-S
Yellow Green
Black 14.20mm (0.56") Common Cathode Three Digit 572 Download
KD1-561XXX Series KD1-561CWB
White
Black 14.20mm (0.56") Common Cathode Single Digit x=0.30,y=0.31 Download
KD1-561XXX Series KD1-561AWB
White
Black 14.20mm (0.56") Common Anode Single Digit x=0.30,y=0.31 Download
KD3‐56BXXX Series KD3-56BCRD-S
Red
Black 14.20mm (0.56") Common Cathode Three Digit 630 Download
KD1-321XXX Series KD1-321CAD-2B
Orange
Black 8mm (0.32") Common Cathode Single Digit 605 Download
KD1-321XXX Series KD1-321AAD-2B
Orange
Black 8mm (0.32") Common Anode Single Digit 605 Download
KD1-571XXX Series KD1-571AGD
Yellow Green
Black 14.60mm (0.57") Common Anode Single Digit 572 Download
KD1-571XXX Series KD1-571CGD
Yellow Green
Black 14.60mm (0.57") Common Cathode Single Digit 572 Download
KD1-321XXX Series KD1-321AVD-2B
Orange-Red
Black 8mm (0.32") Common Anode Single Digit 624 Download
KD1-571XXX Series KD1-571CGD-2B
Yellow Green
Black 14.60mm (0.57") Common Cathode Single Digit 572 Download
KD1-571XXX Series KD1-571AGD-2B
Yellow Green
Black 14.60mm (0.57") Common Anode Single Digit 572 Download
KD1-571XXX Series KD1-571CYD-3C
Yellow
Black 14.60mm (0.57") Common Cathode Single Digit 590 Download
KD1-571XXX Series KD1-571AYD-3C
Yellow
Black 14.60mm (0.57") Common Anode Single Digit 590 Download
KD1-571XXX Series KD1-571CYD-2B
Yellow
Black 14.60mm (0.57") Common Cathode Single Digit 590 Download
KD1-571XXX Series KD1-571AYD-2B
Yellow
Black 14.60mm (0.57") Common Anode Single Digit 590 Download
KD1-571XXX Series KD1-571CVD-2B
Orange-Red
Black 14.60mm (0.57") Common Cathode Single Digit 624 Download
KD1-571XXX Series KD1-571AVD-2B
Orange-Red
Black 14.60mm (0.57") Common Anode Single Digit 624 Download
KD1-571XXX Series KD1-571CSD
Super Red
Black 14.60mm (0.57") Common Cathode Single Digit 640 Download
KD1-571XXX Series KD1-571ASD
Super Red
Black 14.60mm (0.57") Common Anode Single Digit 640 Download
KD1-571XXX Series KD1-571CRD
Red
Black 14.60mm (0.57") Common Cathode Single Digit 630 Download
KD1-571XXX Series KD1-571ARD
Red
Black 14.60mm (0.57") Common Anode Single Digit 630 Download
KD1-571XXX Series KD1-571CBD
Blue
Black 14.60mm (0.57") Common Cathode Single Digit 470 Download
KD1-571XXX Series KD1-571ABD
Blue
Black 14.60mm (0.57") Common Anode Single Digit 470 Download
KD1-571XXX Series KD1-571CAD-3C
Orange
Black 14.60mm (0.57") Common Cathode Single Digit 605 Download
KD1-571XXX Series KD1-571AAD-3C
Orange
Black 14.60mm (0.57") Common Anode Single Digit 605 Download
KD1-571XXX Series KD1-571CAD-2B
Orange
Black 14.60mm (0.57") Common Cathode Single Digit 605 Download
KD1-571XXX Series KD1-571AAD-2B
Orange
Black 14.60mm (0.57") Common Anode Single Digit 605 Download
KD1-40NXXX Series KD1-40NCYD-3C
Yellow
Black 10.16mm (0.4") Common Cathode Single Digit 590 Download
KD1-40NXXX Series KD1-40NAYD-3C
Yellow
Black 10.16mm (0.4") Common Anode Single Digit 590 Download
KD1-40NXXX Series KD1-40NCYD-2B
Yellow
Black 10.16mm (0.4") Common Cathode Single Digit 588 Download
KD1-40NXXX Series KD1-40NAYD-2B
Yellow
Black 10.16mm (0.4") Common Anode Single Digit 588 Download
KD1-40NXXX Series KD1-40NCVD-2B
Orange-Red
Black 10.16mm (0.4") Common Cathode Single Digit 624 Download
KD1-40NXXX Series KD1-40NAVD-2B
Orange-Red
Black 10.16mm (0.4") Common Anode Single Digit 624 Download
KD1-40NXXX Series KD1-40NCSD
Super Red
Black 10.16mm (0.4") Common Cathode Single Digit 640 Download
KD1-40NXXX Series KD1-40NASD
Super Red
Black 10.16mm (0.4") Common Anode Single Digit 640 Download
KD1-40NXXX Series KD1-40NCRD-2B
Red
Black 10.16mm (0.4") Common Cathode Single Digit 630 Download
KD1-40NXXX Series KD1-40NARD-2B
Red
Black 10.16mm (0.4") Common Anode Single Digit 630 Download
KD1-40NXXX Series KD1-40NCRD
Red
Black 10.16mm (0.4") Common Cathode Single Digit 630 Download
KD1-40NXXX Series KD1-40NARD
Red
Black 10.16mm (0.4") Common Anode Single Digit 630 Download
KD1-40NXXX Series KD1-40NCGD-2B
Yellow Green
Black 10.16mm (0.4") Common Cathode Single Digit 572 Download
KD1-40NXXX Series KD1-40NAGD-2B
Yellow Green
Black 10.16mm (0.4") Common Anode Single Digit 572 Download
KD1-40NXXX Series KD1-40NCGD
Yellow Green
Black 10.16mm (0.4") Common Cathode Single Digit 572 Download
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    Lucy
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