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China factory - Shenzhen Guangzhibao Technology Co., Ltd.

Shenzhen Guangzhibao Technology Co., Ltd.

  • China,Shenzhen ,Guangdong
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  3. Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode

  1. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  2. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  3. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode

Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode

  1. MOQ： 1000
  2. Price： Negotiate
  3. Get Latest Price
Payment Terms T/T,Western Union,
Supply Ability 20000 PCS/Day
Delivery Time 10-15 days
Packaging Details EPE+CARTON
Package dimensions 38.5**19*8 (mm)
Character Height 12.7mm (0.5inch)
Face Colour Black
Polarity Common Cathode
Operating Temperature -35ºC ~ +85ºC
Forward voltage Pin through hole
Recommanded forward current 5-10mA
Brand Name LIGHT-BO
Model Number LB3050SYW3B-D
Certification ISO9001&RoHS
Place of Origin Shenzhen, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,Western Union, Supply Ability 20000 PCS/Day
Delivery Time 10-15 days Packaging Details EPE+CARTON
Package dimensions 38.5**19*8 (mm) Character Height 12.7mm (0.5inch)
Face Colour Black Polarity Common Cathode
Operating Temperature -35ºC ~ +85ºC Forward voltage Pin through hole
Recommanded forward current 5-10mA Brand Name LIGHT-BO
Model Number LB3050SYW3B-D Certification ISO9001&RoHS
Place of Origin Shenzhen, China
High Light 3-digit 7-segment LED display ，common cathode refrigerator LED display ，ultra bright white 7-segment display
Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode LED Display for Refrigerators
This refrigerator-optimized numeric LED display is engineered for refrigerator controllers, temperature/humidity indicators, and home appliances. Designed with wide temperature tolerance, clear readability, and durability, it excels at displaying fridge-specific metrics including positive temperatures, sub-zero freezer temps, and humidity levels.
Ultra Bright White LED Display front view Ultra Bright White LED Display side view
Key Features (Refrigerator-Optimized)
Wide Temperature Tolerance for Fridge Environments
  • Extreme Temp Range (-35°C ~ +85°C): Specifically designed to withstand fridge/freezer cold and kitchen ambient heat
  • Freezer-Ready Design: No condensation buildup or component failure in sub-zero conditions
  • Protective Film: Shields segments from moisture, food splatters, and frequent wiping
3½ Digit Functionality for Sub-Zero & Precision Readouts
  • Negative Value Support: Handles values from -199 to 999 for sub-zero freezer temps
  • Precision for Fine Metrics: Supports decimal points for accurate temp/humidity readings
Superior Visibility & Energy Efficiency
  • Ultra Bright White Illumination: High luminous intensity ensures clarity in all lighting conditions
  • Low Power Consumption (5-10mA/LED): Minimizes fridge energy use and extends backup battery life
  • White Segments on Black Surface: High contrast eliminates washout and improves readability
LED Display technical details LED Display dimensional specifications
Technical Specifications
Category Parameter Specification (Refrigerator-Optimized)
Basic Design Display Type 3-Digit 7-Segment LED Display
Polarity Common Cathode
Character Height 12.7mm (0.50 inch)
Package/Outer Dimensions 38.5×19×8mm / 38.2×19×8mm
Segment/Surface Finish White segments on Black Surface + protective film
Optical Performance Emitting Color Primary: Ultra Bright White; Optional: Red/blue/green/amber/yellow/orange
Environmental Resistance Operating Temperature -35°C ~ +85°C
Electrical Parameters Forward Voltage (VF) 2.8-3.2V per LED (white/blue/green); 1.8-2.2V (red/amber/orange)
Recommended Forward Current 5-10mA per LED
Quality & Compliance Core Advantages Wide temp range, stable performance, easy assembly, long lifespan
Quality & Compliance Certificates RoHS Compliant, REACH Compliant
Applications
  • Refrigerator Controllers: Fridge/freezer combos, wine coolers, mini fridges
  • Temperature/Humidity Indicators: Room thermostats, greenhouse monitors, cold storage sensors
  • Home Appliances: Smart thermostats, dehumidifiers, portable ACs
  • Instrument Panels: Industrial cold chambers, lab refrigerators, HVAC control panels
Why Choose This Display for Refrigerators?
  • Extreme Temp Durability: -35°C ~ +85°C range handles freezer cold and kitchen heat
  • Sub-Zero Readability: 3½ digit design shows minus signs for freezers
  • Kitchen-Friendly Design: Protective film resists moisture/grease, easy to clean
  • Energy & Cost Savings: Low current use cuts energy bills; long lifespan reduces replacements
  • Global Compliance: RoHS/REACH certification ensures export to key markets
Order & Logistics Information
Minimum Order Quantity (MOQ): 300 pieces for standard ultra bright white models; 500 pieces for custom colors.
Packing: Anti-static EPE + carton (each display individually wrapped)
Delivery Time: 5-7 days for standard orders; 10-12 days for custom color variants.
Transport: Express (FedEx/DHL), Air (medium-volume), Ocean (bulk orders)
Absolute Maximum Ratings (Ta=25°C)
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 °C
Storage Temperature Range Tstg -40~+85 °C
Solder Temperature(≤3 seconds) Th 260 °C
Electrical Characteristics by Color 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 Intensity Iv If=10mA 30 40 mcd
Wavelength Dλ If=10mA 569 574 nm
Amber/Yellow - Y
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8 2.5 V
Luminous Intensity Iv If=10mA 60 80 mcd
Wavelength Dλ If=10mA 585 595 nm
Orange - F
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8 2.4 V
Luminous Intensity Iv If=10mA 60 80 mcd
Wavelength Dλ If=10mA 600 605 nm
Super Bright Red - R
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8 2.2 V
Luminous Intensity Iv If=10mA 50 60 mcd
Wavelength Dλ If=10mA 630 635 nm
Ultra Bright Red - UR
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8 2.2 V
Luminous Intensity Iv If=10mA 80 100 mcd
Wavelength Dλ If=10mA 625 635 nm
Pure Green - G
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.6 3.2 V
Luminous Intensity Iv If=10mA 120 180 mcd
Wavelength Dλ If=10mA 515 525 nm
Ultra Bright Blue - BH
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.8 3.2 V
Luminous Intensity Iv If=10mA 120 140 mcd
Wavelength Dλ If=10mA 460 465 nm
Ultra Bright White - WH
Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.8 3.2 V
Luminous Intensity Iv If=10mA 120 140 mcd
LED Color Temperature K If=10mA 5500 20 6800 K
Manufacturer Information
SHENZHEN GUANGZHIBAO TECHNOLOGY CO., LTD. (BRAND: LIGHT-BO)
Established in 2006, we are an ISO 9001:2015 certified company that integrates R&D, manufacturing and sales of optoelectronics LED Displays. With more than 15 years OEM and ODM experience, LIGHTBO is committed to providing high quality, low cost customized solutions to help customers reduce costs and enhance competitiveness.
Products Applications
7 Segment LED Display, Customized LED Display, Numeric LED Display, Dot matrix LED Display, widely used for home appliances, temperature indicators, humidity indicators, refrigerator controller, thermostats indicator, heating and cooling control and more.
LED Display applications in various devices
Certifications
Company certifications and quality standards
Office and Factory Overview
Manufacturing facility overview Production line equipment Quality control station Assembly area Factory layout diagram
Company Exhibitions
Trade show exhibition booth Industry exhibition participation
Shipping Services
Global shipping and logistics services
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 more.
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. Details of payment methods can be negotiable.
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 certified manufacturers with more than 20 years experience. We conduct twice 100% percent test for all of our products before shipment.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer

  • Year Established:

    2006

  • Total Annual:

    10million-12million

  • Employee Number:

    150~200

  • Ecer Certification：

    Verified Supplier

Shenzhen Guangzhibao (Light-Bo) Technology Co. Ltd is specialized in LED products, including LED 7 segment numeric displays, alphanumeric LED displays,dot-matrix LED Displays, SMD LEDs, LED lamps,LCD backlights,LED light bar, bar gragh arrays and LED direction indicator displays and more. We offer ... Shenzhen Guangzhibao (Light-Bo) Technology Co. Ltd is specialized in LED products, including LED 7 segment numeric displays, alphanumeric LED displays,dot-matrix LED Displays, SMD LEDs, LED lamps,LCD backlights,LED light bar, bar gragh arrays and LED direction indicator displays and more. We offer ...

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Get in touch with us

  • Reach Us
  • Shenzhen Guangzhibao Technology Co., Ltd.
  • ROOM 308,3/F,BUILDING 1,BAIWANG RESEARCH AND DEVELOPMENT BUILDING,NO. 5298 ,SHAHE WEST ROAD,XILI STREET,NANSHAN DISTRICT,SHENZHEN
  • https://www.segment-leddisplay.com/

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