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7 Segment LED Display
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Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode

Brand Name: LIGHT-BO
Model Number: LB30401LBH3B-D
MOQ: 1000
Price: Negotiate
Payment Terms: T/T,Western Union
Supply Ability: 50000PCS/Days
Detail Information
Place of Origin:
Shenzhen, China
Certification:
ISO9001&RoHS
Brightness:
Ultra Brightness
Name:
7 Segment Led Display
Life Span:
Over 70000 Hours
Outer Dimensions:
30.1*16*7MM
Digit Height:
0.4inch
Shipping:
By DHL, TNT, UPS, EMS, Etc.
Pixels:
9.20mm
Emitting Color:
Blue, Yellow, Green, White, Red, Amber,orange
Forward Voltage:
2.6-3.0
Forward Current:
5-10
Wavelength:
460-470
Material:
Yellow Epoxy Black Surface
Packaging Details:
EPE+CARTON
Supply Ability:
50000PCS/Days
Product Description

High-Efficiency LED Numeric/Alphanumeric Display – Optimized for Smart Appliances & Visible Readouts
Product Overview

This LED display is engineered for high-efficiency, high-visibility numeric and alphanumeric readouts across smart devices and industrial indicators—with core advantages rooted in optimized forward voltage and precision voltage regulation. It delivers maximum brightness output while slashing energy expenditure, ensuring no compromise between performance and efficiency—critical for 24/7 operated devices like kitchen appliances or process monitors. Fully compliant with RoHS and REACH regulations, it adapts to diverse use cases: from smart kitchen/laundry appliances to digital media devices and industrial indicators. Whether displaying simple numbers or alphanumeric messages, it balances clarity, durability, and eco-friendliness, making it a versatile solution for consumer electronics and industrial applications.

 

Product Image

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 0

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 1

 

Core Product Features (Efficiency & Performance Focus)
1. Optimized Forward Voltage for Maximum Efficiency
Tailored forward voltage design:
Unlike generic displays with one-size-fits-all voltage requirements, this display’s forward voltage is optimized to match common low-voltage circuits. This minimizes energy waste from voltage conversion, directly reducing power consumption by 20-30% compared to standard displays—ideal for battery-powered devices or energy-efficient smart appliances.
Precision voltage regulation: Built-in voltage stabilization ensures consistent current flow to each segment/dot, even when power supplies fluctuate. This guarantees maximum brightness output at all times—no dimming during peak appliance use and no over-brightness that wastes energy.
2. High Visibility Without Energy Tradeoffs
Reduced energy expenditure, uncompromised brightness:
The efficiency-focused design eliminates the "brightness vs. energy" dilemma. It maintains vivid, readable output while using less power than traditional displays. For example, a smart oven with this display uses ~50% less energy for its readout than one with a standard LED display—adding up to significant long-term savings for users.
Adaptable to numeric/alphanumeric needs: Whether configured as a 7-segment (numeric) or 16-segment (alphanumeric) display, it retains efficiency and brightness. This flexibility allows it to display simple values or complex messages, making it a one-stop solution for diverse device types.
3. Global Regulatory Compliance
RoHS/REACH compliant:
Free from restricted substances and hazardous chemicals, ensuring compliance with global consumer electronics and industrial regulations. This eliminates barriers to export for brands targeting markets like the EU, North America, and Asia, and aligns with eco-friendly product initiatives.

 

Detail Image

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 2

 

Target Applications
Designed for efficiency-critical, visibility-focused devices across consumer and industrial sectors:
Kitchen/Laundry Smart Appliances:

Microwaves: Displaying cook time or power levels 
Washers/Dryers: Showing cycle stages or remaining time
Refrigerators: Indicating internal temperature or water filter status 
High-Visibility Numeric Readouts:
Industrial process indicators: Displaying pressure, flow rate, or production counts
Public area displays: Queue numbers or digital signage 
Digital Media & Entertainment Devices:
AV receivers:
Volume levels or input sources
Set-top boxes: Channel numbers or playback time
General Digital Indicators:
Temperature/humidity monitors:
Indoor/outdoor metrics
Portable test tools: Battery voltage

Product Parameters

Absolute Maximum Ratings(Ta=25ºC)

Parameter Symbol Ratings Unit
Forward Current(per dice) Ipm 20 mA
Reverse Voltage(per dice) Vr 5 V
Power Dissipation(per dice) Pm 80 mW
Operating Temperature Range Topr -40~+85 ºC
Storage Temperature Range Tstg -40~+85 ºC
Solder Temperature(≤3 seconds) Th 260 ºC

 

Code:Yellow Green- J

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.4 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 30   40 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 569   574 nm

 

Code:Amber/Yellow -Y

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.5 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 60   80 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 585   595 nm

 

Code:Orange -F

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.4 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 60   80 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 600   605 nm

 

Code:Super Bright Red -R

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 50   60 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 630   635 nm

 

Code:Ultra Bright Red -UR

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 80   100 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 625   635 nm

 

Code:Pure Green -G

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.6   3.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 120   180 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 515   525 nm


Code:Ultra Bright Blue -BH

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.8   3.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 120   140 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 460   465 nm

 

Code:Ultra Bright White -WH

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.8   3.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 120   140 mcd
LED color Temperature K If=10mA 5500 20 6800 K
Chromaticity Coordinates
X/Y If=10mA 0.29,0.32   0.30,0.33 nm

    Shenzhen Guangzhibao Technology Co., Ltd. (Brand: Light-Bo) stablished in 2006 , A company that integrates R & D, manufacturing and sales of optoelectronics LED Displays . ISO 9001 2015 Quality Management Systems certified company . With more than 15 years OEM and ODM experience .
    Light Bo has been committed to provide high quality and low cost customized solutions to help customers reduce cost and enhance competitiveness.

Products Applications

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 3
    7 Segment LED Display, Customized LED Display, Numeric LED Display, Dot matrix LED Display, widely used for home appliances,tempearture indicators, humidity indicators, refrigerator controller,thernostats indicator,heating and cooling control and so on.

Certifications

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 4

Office and Factory Overview

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 5

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 6Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 7

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 8

Company Exhibitions

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 9Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 10

SHIPPING SERVICES

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 11

Ultra Bright Blue 7 Segment led display 3 Digit Common Cathode 12

FAQ

FAQ(Frequently Asked Questions)
Q1 Are you trading company or manufacturer?

A: We are original manufacturer with more than 20 years experience in optoelectronic LED displays .
Q2 What is your main products?
A: Our main products include 7 Segment LED display, SMD LED Display,Dot matrix LED Display, Arrow LED display, Custom Design LED Display ,LED light bar,Through hole led, SMD LEDs,LED Backlights, and so on.
Q3 What is your MOQ?
A: Our MOQ is 1000 pcs , We can also accept sample orders and small orders with quantity less than our MOQ .
Q4 Before placing order, Can I get some samples for test?
A: Yes. We can provide 5-10 free samples for your testing, but the freight cost will be borne by the customer.
Q5 How long is your delivery time?
A: Delivery time:About 10-20 days; According to order quantity and raw materials. If you have urgent order,and we have raw materials in stock,
we can adjust our production plan to make it ready within 7-10 days .
Q6 What is your terms of payment?
A: We accept bank transfer,T/T,Western Union and Paypal with small amount. Detailes of payment methods can be negotiatble.
Q7 Can you quote me FOB prices?
A: Yes. We can quote you prices based on incoterms EXW, FOB, CIF,DDP.
Q8 How can I get your catalogue and price list?
A: Yes . Please let us know your email address or contact us from website directly for our catalogue and price list .
Q9 Can I negotiate the prices?
A: Yes, we may consider discounts for bulk orders.
Q10 How much will the shipping charges be?
A: It depends on the size of your shipment and the method of shipping.
We will offer the charge to you as you requested.
Q11 Can you do custom design products?
A: Yes , OEM&ODM service are available .We can customize the sizes,led color and functional icons according to your requirements.
Q12 If I send my design , can you make it for myself only ,and will not show it to any one else?
A: Yes , we will not show it or sell to others without your authorization.
Q13 What will be the samples lead time for customized products?
A: Samples lead time will be about 20-25 working days after receiving mold cost and mold drawing approval from customers .
Q14 What is the shipping methods?
A:We usually ship the goods by DHL, FEDEX,UPS,EMS,BY AIR,BY SEA etc, also you can choose the other way that best for you.
Q15 How do you ensure the quality of your products?
A: we are ISO 9001 QMS ceritified manufacturers with more than 20 years experience ,We conduct twice 100% percent test for all of our products before shipment .