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Custom Ultra white / Ultra red 3-Digit 7 segment led display common anode for temperature control
Product Overview
Introducing our Ultra Bright 0.4-Inch (10.2mm) LED Display—a dual-color (white/red), common anode solution engineered for home appliances, refrigerator controllers, and temperature indicators. Designed to balance visibility, energy efficiency, and easy integration, this display excels at delivering clear, reliable readouts for daily use: fridge internal temperatures (e.g., "5°C"/"-18°C"), room thermostats (e.g., "23°C"), or appliance statuses (e.g., "01:30" for microwave timers).
Its 10.2mm (0.4-inch) digit height ensures readability from 1–2 meters (typical kitchen/living room distances), while the 44.7×34.6×8.5mm form factor fits seamlessly into standard appliance control panels—no bulky redesigns required. The two color options serve distinct functional needs: ultra bright white for neutral, eye-friendly daily readings (e.g., fridge temp), and ultra bright red for alerts or high-visibility needs (e.g., "HIGH TEMP" warnings).
With a common anode configuration, low power consumption (5-10mA recommended current), and RoHS compliance, this display combines durability, eco-friendliness, and performance—ideal for 24/7 operation in home appliances and temperature-sensitive devices.
Main Image
Detail Image
Key Features (Home Appliance & Temperature-Optimized)
1. Dual-Color Versatility for Functional Use Cases
The display's two ultra bright color options are tailored to specific appliance needs, ensuring clarity and intent:
| Color Variant | Key Specifications | Ideal Use Case |
| Ultra Bright White | Luminous intensity: 80-100mcdForward voltage: 2.8-3.2V/LEDX/Y ratio: 0.29-0.31 (neutral light) | Neutral, eye-friendly readouts for daily use—refrigerator controllers, room thermostats, or microwave timers. The balanced X/Y ratio avoids harshness during prolonged viewing. |
| Ultra Bright Red | Luminous intensity: 70-90mcdForward voltage: 1.8-2.2V/LEDWavelength: 620-625nm (high visibility) | Alerts or high-visibility needs—temperature indicators showing "30°C", oven "PREHEAT" status, or appliance error codes. Red light cuts through ambient glare and signals urgency without straining eyes. |
2. Superior Visibility & Reliability
High Luminous Intensity: Both variants deliver bright, consistent light—white (80-100mcd) and red (70-90mcd) ensure readability in bright or dim (nighttime fridge checks) environments. No "washout" or dim segments, even under direct indoor light.
Stable Performance: Withstands temperature fluctuations and minor vibrations. Maintains uniform brightness and no flickering during value updates.
Long Lifespan (50,000+ Hours): High-quality LED chips match the 8–10 year service life of most home appliances. Eliminates the need for frequent display replacements, reducing maintenance costs for users.
3. Energy Efficiency & Easy Integration
Low Power Consumption (5-10mA Recommended Current): Extremely low energy draw minimizes electricity use for 24/7-run appliances and extends battery life for portable temperature indicators. For example, a fridge display using 5mA consumes ~0.04kWh per year—negligible for household energy bills.
Common Anode Polarity: Compatible with standard driver ICs widely used in home appliances. Simplifies circuit design for manufacturers and ensures backward compatibility with existing appliance firmware.
Easy Assembly: Designed for hassle-free PCB mounting, with a footprint that fits standard appliance control panels. Supports automated production and reduces labor costs for assembly.
4. Safety & Compliance
RoHS Compliant: Free from lead, mercury, and other harmful substances—meets global environmental standards. Safe for use in family-friendly home appliances and export to markets like the EU, North America, and Asia.
Low Heat Emission: Efficient power use minimizes heat generation, preventing overheating in compact appliance panels and reducing thermal stress on adjacent components.
| Category | Parameter | Ultra Bright White Variant | Ultra Bright Red Variant |
| Basic Design | Display Type | Numeric 7-segment | Numeric 7-segment |
| Polarity | Common Anode | Common Anode | |
| Digit Height | 10.2mm (0.4 inch) | 10.2mm (0.4 inch) | |
| Outer Dimensions (L×W×H) | 44.7 × 34.6 × 8.5mm | 44.7 × 34.6 × 8.5mm | |
| Optical Performance | Emitting Color | Ultra Bright White | Ultra Bright Red |
| Luminous Intensity | 80-100 mcd | 70-90 mcd | |
| Wavelength | — | 620-625nm | |
| X/Y Ratio (Color Coordinate) | 0.29-0.31 | — | |
| Electrical Parameters | Forward Voltage (VF) | 2.8-3.2V per LED | 1.8-2.2V per LED |
| Recommended Forward Current | 5-10mA per LED | 5-10mA per LED | |
| Quality & Compliance | Core Advantages | High brightness, low power, stable performance, easy assembly | High brightness, low power, stable performance, easy assembly |
| Compliance | RoHS Compliant | RoHS Compliant |
Applications
This display is purpose-built for home appliances and temperature-sensitive devices, including:
Refrigerator Controllers: Showing fridge/freezer temperatures with ultra bright white, or alerts with ultra bright red.
Home Appliances: Microwaves, ovens or coffee makers.
Temperature Indicators: Room thermostats, portable space heater monitors or window AC controllers.
Instrument Panels: Small home electronics, smart home hubs or humidifiers .
Why Choose This LED Display for Home Appliances?
Functional Color Cues: White for daily readability, red for alerts—eliminates ambiguity (e.g., users instantly recognize red as a warning, white as normal).
Appliance-Friendly Size: 44.7×34.6×8.5mm dimensions fit standard control panels—no need to resize fridges, microwaves, or thermostats.
Energy & Cost Efficient: Low 5-10mA current cuts electricity use; long lifespan reduces replacement costs for users.
Easy Manufacturing: Common anode polarity works with standard ICs, streamlining production for appliance manufacturers.
Global Safety: RoHS compliance ensures use in international markets, aligning with consumer safety standards.
Order & Logistics Information
Minimum Order Quantity (MOQ): 300 pieces per color variant (white/red); 500 pieces for mixed-color orders.
Packing: Anti-static EPE + carton
Delivery Time: 5–7 days for standard orders; 10–12 days for custom modifications.
Transport: Express, Air , Ocean
Contact Us
Our team specializes in LED displays for home electronics, providing 24-hour support to help you optimize your appliance's usability, reliability, and market appeal!
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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 .
LIGHTBO has been committed to provide high quality and low cost customized solutions to help customers reduce cost and enhance competitiveness.
Products Applications
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
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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 customzied 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 .
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