High-Visibility Ultra Red 4-Digit LED Clock Display Unit

Ultra Bright Red 4-Digit 7-Segment LED Clock Display - 0.8-Inch (20mm), Common Cathode, 8.5mm Slim Profile

Product Main Image Area

Front Luminous Shot: Clear display of ultra bright red digits (e.g., "12:34" for clock scenarios) with white segments and black surface, emphasizing high contrast and brightness.
Dimension Labeled Diagram: Marked 71.6×25.8×8.5mm outer dimensions and 20mm (0.8-inch) character height, visualizing the slim 8.5mm depth for space-constrained devices.
Side Profile Shot: Highlight the 8.5mm ultra-thin thickness to showcase compatibility with slim panels (e.g., set-top boxes, compact thermostats).
Application Mockup: Integrated into a clock, instrument panel, or set-top box to demonstrate real-world use.
Parameter Close-Up: Engraved "Common Cathode (CC)" and "RoHS" logos on the back, reinforcing compliance and polarity clarity.

Core Specifications Table

Key Selling Points
1. Ultra Bright Red Luminosity & High Contrast for All-Time Readability
90-110mcd ultra bright red emission: Cuts through ambient light (e.g., living room ceiling lights, office lamps) while remaining easy on the eyes in dark spaces (e.g., bedroom night clocks). Perfect for clock displays where readability at any time of day is critical.
White segments + black surface: Eliminates reflection and enhances digit clarity-even from off-angles. Unlike low-contrast displays, it avoids misreading "6" as "9" or "8" as "3," ensuring accuracy for time, temperature, or numeric indicators.
2. 8.5mm Slim Profile & Compact Size for Slim Devices
Ultra-thin 8.5mm depth: Fits seamlessly into slim enclosures like set-top boxes (where internal space is limited), wall-mounted thermostats, or compact instrument panels. No need to modify device housing to accommodate bulkier displays.
71.6×25.8mm optimized footprint: The 4-digit layout balances screen real estate and space efficiency-ideal for displaying time ("10:05"), temperature ("25ºC"), or channel numbers ("120") without taking up excess panel space.
3. Energy Efficiency & Long-Term Reliability
Low power consumption (5-10mA/LED): Minimizes energy draw, making it suitable for battery-powered devices (e.g., portable thermometers) or 24/7 operated equipment (e.g., always-on set-top boxes). Reduces long-term electricity costs and extends battery life.
Stable performance: Withstands voltage fluctuations (1.8-2.2V adaptive) and temperature ranges of -40ºC to 85ºC (industrial grade), ensuring no flickering, segment dropout, or brightness degradation-even in harsh environments (e.g., hot kitchen appliances, cold garage thermostats).
4. Easy Integration & Wide Compatibility
IC compatible: Works with mainstream 7-segment driver ICs (74HC595, TM1638, MAX7219), eliminating the need for custom driver development. Simplifies circuit design for manufacturers and speeds up product launch cycles.
Easy-to-assemble: Supports both through-hole and SMD mounting (optional), adapting to automated production lines or manual assembly. Standardized pinouts ensure consistent installation and reduce assembly errors.

Detail Image

Target Applications
1. Clock & Time-Related Devices
Digital wall clocks: Display hour/minute (e.g., "09:45") or 12/24-hour format.
Kitchen timers: Show countdown time (e.g., "00:59") for cooking/baking.
Set-top boxes & media players: Indicate playback time (e.g., "30:15") or channel numbers (e.g., "0120").
2. Home Appliances
Smart thermostats: Display indoor temperature (e.g., "22ºC"), set temperature (e.g., "25ºC"), or humidity (e.g., "50%").
Small kitchen appliances (air fryers, microwaves): Show cooking time (e.g., "01:20") or target temperature (e.g., "180ºC").
Washing machines/dryers: Indicate remaining cycle time (e.g., "25min") or program codes (e.g., "04").
3. Industrial & Instrument Panels
Temperature/humidity monitors: Display real-time environmental data (e.g., "28ºC/60%RH") in factories, warehouses, or greenhouses.
Equipment status indicators: Show operation hours (e.g., "125h"), production counts (e.g., "500pcs"), or voltage levels (e.g., "220V").

Procurement & Delivery Information

Quality Assurance
Raw Material Control: Uses high-grade LED chips (Taiwan Epistar) and PC plastic (heat-resistant up to 120ºC) for the black surface, ensuring durability and consistent luminosity.
100% Inspection: Each unit undergoes brightness testing, voltage testing, and high-low temperature cycle testing (-40ºC~85ºC) before shipment to eliminate defective products.
Warranty: 1-year warranty for non-human damage. If quality issues occur, free replacement or refund is provided (batch number and test report required).

Application Image

Frequently Asked Questions (FAQ)
Q: Is this display suitable for outdoor use?
A: It is designed for indoor use (e.g., homes, offices) due to its non-waterproof design. For outdoor applications, we recommend our waterproof-coated version (customizable upon request).
Q: Can it display decimal points?
A: Yes-each digit can be equipped with a decimal point (optional) to support temperature (e.g., "25.5ºC") or time (e.g., "10:05.5") display.
Q: What is the viewing angle?
A: The horizontal/vertical viewing angle is ≥120°, ensuring clear readability from the side (e.g., a clock mounted on a wall viewed from a sofa).

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 top quality products at competitive prices to meet different requirement for industry applications. We introduced computerized operation system and complete QC system. Key raw materials are sourced from the US, Japan and Taiwan area, plus,we utilise an array of advanced production equipments from ASM and Risen,such as automatic dice bonding and wire soldering machines . We specialise in offering series of optoelectronic displays in pure green, pure white and ultra blue.All of our products comply with the RoHS Directives. Monthly capacity reaches 3,000,000pcs.
We have been in LED industry for more than 12 years. With more than 10 years OEM and ODM experience, our R&D engineers are at hand for your customization requirements. Samples can be ready in just 10-15 days. Contact us now !