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China factory - Shenzhen Guangzhibao Technology Co., Ltd.

Shenzhen Guangzhibao Technology Co., Ltd.

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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China Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display
China Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display

  1. China Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display
  2. China Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display
  3. China Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display

Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display

  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
Polarity Common Anode
LED Color Ultra Bright White
Forward Voltage 2.8-3.2V/LED
Forward Current 5-10mA/LED
Origin Shenzhen
Brandname LIGHT-BO
Packing EPE+Carton
Brand Name LIGHT-BO
Model Number LB40284IWH3B-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
Polarity Common Anode LED Color Ultra Bright White
Forward Voltage 2.8-3.2V/LED Forward Current 5-10mA/LED
Origin Shenzhen Brandname LIGHT-BO
Packing EPE+Carton Brand Name LIGHT-BO
Model Number LB40284IWH3B-D Certification ISO9001&RoHS
Place of Origin Shenzhen, China
High Light 7-segment LED display common anode ，ultra bright white 7mm LED display ，4-digit 7-segment display for timers
Ultra Bright White 7mm 4-Digit 7-Segment LED Display
Space-saving, high-visibility solution engineered for digital timers, LED clocks, and compact home appliances. Designed to prioritize miniaturization, clear time readouts, and energy efficiency.
Ultra Bright White 7mm 4-Digit LED Display front view Ultra Bright White 7mm 4-Digit LED Display side view Ultra Bright White 7mm 4-Digit LED Display close-up Ultra Bright White 7mm 4-Digit LED Display illuminated
Key Features for Digital Timers & Clocks
Ultra-Compact Design for Timekeeping Devices
  • Slim 32.1×10×5.8mm dimensions fit portable digital timers and slim LED clocks
  • 7mm (0.28-inch) character height balances miniaturization with readability
  • Industrial standard size enables drop-in replacement for outdated timers/clocks
Superior Visibility for Time Readouts
  • Ultra bright white illumination ensures clarity in bright environments
  • Yellow epoxy black surface softens harsh white light while boosting contrast
  • Even segment lighting guarantees consistent readability of time details
Energy Efficiency & Reliable Performance
  • Low power consumption extends battery life for portable timers
  • Stable operation withstands temperature fluctuations and minor vibrations
  • Long lifespan (50,000+ hours) matches 5-8 year service life of most timers/clocks
Versatility & Compliance
  • Common anode polarity works with standard timer/clock driver ICs
  • Multi-color options available: red, blue, green, amber, orange, and yellow
  • RoHS/REACH compliant for global market safety standards
Technical Specifications
Category Parameter Specification
Basic Design Display Type 4-Digit 7-Segment LED Display
Basic Design Polarity Common Anode
Basic Design Character Height 7mm (0.28 inch)
Basic Design Outer Dimensions 32.1 × 10 × 5.8mm
Basic Design Segment/Surface Finish Yellow Epoxy with Black Surface
Optical Performance Emitting Color Primary: Ultra Bright White; Optional: Red/blue/green/amber/orange/yellow
Electrical Parameters Forward Voltage (VF) Optimized for high luminous intensity
Electrical Parameters Recommended Forward Current 5-10mA per LED
Electrical Parameters Power Consumption Low (energy-efficient for continuous timekeeping)
Quality & Compliance Core Advantages Even light distribution, bright ambient reliability, stable performance
Quality & Compliance Compliance RoHS Compliant, REACH Compliant
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 (Code: 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 (Code: 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
Ultra Bright White (Code: 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
Applications
  • Digital Timers: Kitchen countdown timers, fitness timers, industrial process timers
  • LED Clocks: Slim wall clocks, desk clocks, smart home clocks
  • Home Appliances: Microwave timers, oven timers, washing machine cycle timers
  • Instrument Panels: Audio equipment, set-top boxes, portable generators
Why Choose This Display for Digital Timers?
Time readout clarity with ultra bright white light and yellow epoxy surface ensures visibility at a glance. Ultra-compact size works for portable timers and slim clocks without compromising device design. Low current use extends portable timer battery life. Industrial standard size enables drop-in replacement for old displays. RoHS/REACH certification simplifies export to international markets.
Order & Logistics Information
Minimum Order Quantity: 300 pieces for standard ultra bright white models; 500 pieces for custom colors/configurations.
Packing: Anti-static EPE + carton with individual wrapping to protect surfaces and pins.
Delivery Time: 5-7 days for standard models; 10-12 days for custom colors.
Transport: Express, Air, Ocean available.
Manufacturer Information
SHENZHEN GUANGZHIBAO TECHNOLOGY CO., LTD. (BRAND: LIGHT-BO) established in 2006. ISO 9001:2015 certified company with over 15 years OEM and ODM experience. Committed to providing high quality, low cost customized solutions.
Frequently Asked Questions
Are you trading company or manufacturer?
We are original manufacturer with more than 20 years experience in optoelectronic LED displays.
What is your main products?
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.
What is your MOQ?
Our MOQ is 1000 pcs, but we can accept sample orders and small orders with quantity less than our MOQ.
Before placing order, Can I get some samples for test?
Yes. We can provide 5-10 free samples for your testing, but the freight cost will be borne by the customer.
How long is your delivery time?
Delivery time: About 10-20 days; According to order quantity and raw materials. For urgent orders with available raw materials, we can adjust production plan for 7-10 day delivery.
What is your terms of payment?
We accept bank transfer, T/T, Western Union and Paypal with small amount. Payment methods are negotiable.
Can you quote me FOB prices?
Yes. We can quote prices based on incoterms EXW, FOB, CIF, DDP.
Can I negotiate the prices?
Yes, we may consider discounts for bulk orders.
Can you do custom design products?
Yes, OEM & ODM service are available. We can customize sizes, LED color and functional icons according to your requirements.
How do you ensure the quality of your products?
We are ISO 9001 QMS certified manufacturers with more than 20 years experience. We conduct twice 100% testing for all 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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