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0.39" Single-Digit 7-Segment Common Anode White LED Display for Hair Dryers
Product Overview
Introducing the 0.39" Single-Digit 7-Segment Common Anode White LED Display—a compact, high-visibility numeric solution engineered for hair dryers and small consumer electronics. Designed to fit seamlessly into hair dryer control panels (where space is at a premium), this display features a 0.39" (9.9mm) character height for clear readability, ultra bright white illumination (100-140mcd/dice), and a common anode configuration for easy integration with hair dryer circuit boards.
With a slim 10×13×7mm package, black/grey face for anti-glare contrast, and RoHS compliance, it balances functionality and durability—critical for hair dryers (which operate in warm, humid bathroom environments). The display's big viewing angle ensures users can easily read heat settings (e.g., "1," "2," "3") from multiple positions, while low power consumption and long lifetime align with consumer appliance efficiency standards. Multiple emitting color options and support for OEM/ODM orders further extend its versatility for diverse product designs.
Product Image
Key Features
1. Hair Dryer-Optimized Design
Compact 10×13×7mm Package: Fits into slim hair dryer control panels without adding bulk, avoiding interference with grip or button layouts—essential for ergonomic consumer appliances.
0.39" (9.9mm) Character Height: Balances readability (for heat speed settings) and space efficiency; digits are large enough to be seen quickly (even with wet hands) but small enough for compact hair dryer designs.
Black/Grey Face: Reduces glare from bathroom lighting or sunlight, ensuring the white LED illumination stands out clearly—preventing misreads of heat settings (a key safety feature for hair dryers).
2. Superior Visibility & Reliability
Ultra Bright White Illumination: 100-140mcd/dice luminous intensity and 0.29-0.33 (X/Y) chromaticity deliver crisp, pure white light that cuts through bathroom humidity and ambient light, ensuring settings are visible at a glance.
Big Viewing Angle: Wide horizontal and vertical visibility means users can read the display without tilting the hair dryer—enhancing usability and safety during styling.
Stable Performance in Warm Environments: Engineered to withstand the mild heat generated by hair dryers (typical operating temperatures up to 40°C), maintaining consistent brightness and avoiding display lag or failure.
3. Easy Integration & Durability
Common Anode Configuration: Simplifies wiring with hair dryer control boards and standard driver ICs (e.g., for heat speed selection), reducing circuit design complexity for appliance manufacturers.
Easy Assembly: Designed for hassle-free PCB mounting, compatible with automated production lines for high-volume hair dryer manufacturing—no specialized tools required.
Long Lifetime: High-quality LED chips ensure a typical lifespan of 50,000+ hours, matching the 3-5 year service life of most hair dryers and minimizing replacement needs for end-users.
4. Flexibility & Compliance
Multi-Color Options: Beyond white, choose from red, blue, yellow green, pure green, amber, orange, or yellow to match hair dryer brand aesthetics or functional needs (e.g., red for high heat, green for low heat).
OEM/ODM Support: Accepts customizations (e.g., modified face color, adjusted brightness, tailored pin layouts) to align with specific hair dryer design requirements.
RoHS Directive-Compliant: Meets international environmental and safety standards, ensuring compatibility with global hair dryer markets (Europe, North America, Asia, etc.).
| Category | Parameter | Specification |
| Basic Design | Display Type | Single-Digit 7-Segment LED Display |
| Polarity | Common Anode | |
| Character Height | 0.39inch (9.9mm) | |
| Package Dimensions (L×W×H) | 10 × 13 × 7mm | |
| Face Color | Black/Grey | |
| Optical Performance | Emitting Color | Ultra Bright White (red/blue/yellow green/pure green/amber/orange/yellow available) |
| Luminous Intensity | 100-140 mcd/dice | |
| Chromaticity Coordinates (X/Y) | 0.29-0.33 | |
| Electrical Parameters | Forward Voltage (VF) | 2.8-3.2V per LED |
| Quality & Compliance | Core Advantages | High luminous intensity, big viewing angle, stable performance, long lifetime |
| Customization Support | OEM/ODM orders accepted | |
| Assembly | Easy (PCB-mountable) | |
| Compliance | RoHS Directive-Compliant |
While optimized for hair dryers, this single-digit LED display is also widely suitable for:
Small Consumer Appliances: Electric shavers, hair straighteners, or mini fans (for speed/temperature settings).
Audio Equipment: Portable amplifiers or media players (for volume levels or track numbers).
Digital Indicators: Battery level monitors, countdown timers, or thermometers (for simple numeric readouts).
Instrument Panels: Compact test equipment or smart home sensors (for status or measurement data).
Why Choose This Display for Hair Dryers?
Hair Dryer-Sized Fit: 10×13×7mm package fits into slim control panels, avoiding ergonomic compromises in grip or button placement.
User-Friendly Visibility: Big viewing angle and anti-glare black/grey face ensure settings are readable quickly—even in busy bathrooms.
Durable for Daily Use: Long lifetime and heat resistance match the demands of regular hair dryer use, reducing end-user complaints.
Easy Manufacturing: Common anode configuration and automated assembly compatibility speed up hair dryer production.
Global Market Ready: RoHS compliance and OEM/ODM support ensure alignment with international standards and brand-specific designs.
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 .
Light Bo 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 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 .
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