Customized 3-digit common cathode 7-segment LED display designed
for refrigerator temperature control and other industrial
applications.
Product Specifications
- Product Overview
Light-Bo's custom-designed 3-digit 7-segment COB (Chip-on-Board)
LED display is engineered for precision in cooling control systems
and home appliances. With a 0.67-inch (17.12mm) character height
and vibrant green emission, it delivers clear visibility in compact
spaces, supported by slim outer dimensions (37.9×20.45×5.75mm).
Featuring white segments on a black surface with protective film,
this display combines high luminous intensity with low power
consumption, making it ideal for air conditioner controls,
refrigerator indicators, and heating/cooling systems. Configured as
common cathode and RoHS-certified, it ensures stable performance
and easy integration into electronic panels.
Key Features
COB Technology: Chip-on-Board construction ensures compact size, uniform light
distribution, and enhanced durability-perfect for space-constrained
cooling control systems.
3-Digit Design with 0.67" Height: 17.12mm (0.67-inch) character height provides clear readability,
critical for displaying temperatures or settings in cooling
controls.
Vibrant Multi-Color Options: Available in green (standard), red, amber, blue, white, yellow,
and orange, allowing customization to match appliance aesthetics.
Durable Construction: White segments on a black surface with protective film resist wear
and moisture, ensuring longevity in home appliances.
Energy Efficiency: Low power consumption and extremely low current make it ideal for
long-term operation in cooling/heating control systems.
Easy Integration: Common cathode configuration, IC compatibility, and simple
assembly streamline installation into PCBs, reducing manufacturing
time.
RoHS Certified: Meets global environmental standards, ensuring safety for
household and commercial applications.
Technical Specifications
| Specification | Details |
|---|
| Brand Name | Light-Bo |
| Type | COB (Chip-on-Board) 7-segment |
| Digit Count | 3 digits |
| Character Height | 17.12mm (0.67 inch) |
| Package Dimensions | 37.9×20.45×5.75mm |
| Polarity | Common Cathode |
| Emitting Color | Green (with options: red, blue, white, amber, yellow, orange) |
| Surface Design | White segments on black surface with protective film |
| Key Features | High luminous intensity, low power consumption, RoHS certified |
| Compliance | RoHS |
Electrical & Optical Characteristics
Pure Green (Code: 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 Intensity | Iv | If=10mA | 120 | - | 180 | mcd |
| Wavelength | Dλ | If=10mA | 515 | - | 525 | nm |
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: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 |
Additional color variants available including Yellow Green,
Amber/Yellow, Orange, Super Bright Red, Ultra Bright Red, Ultra
Bright Blue, and Ultra Bright White with detailed specifications
available upon request.
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.
Frequently Asked Questions
Q1: Are you a trading company or manufacturer?
A: We are an original manufacturer with more than 20 years
experience in optoelectronic LED displays.
Q2: What are your main products?
A: Our main products include 7 Segment LED displays, SMD LED
Displays, Dot Matrix LED Displays, Arrow LED displays, Custom
Design LED Displays, LED light bars, Through Hole LEDs, SMD LEDs,
LED Backlights, and more.
Q3: What is your MOQ?
A: Our MOQ is 1000 pieces. We also accept sample orders and small
quantities below our MOQ.
Q4: Can I get samples for testing before placing an order?
A: Yes. We provide 5-10 free samples for testing, with freight
costs borne by the customer.
Q5: How long is your delivery time?
A: Delivery time is approximately 10-20 days, depending on order
quantity and raw materials. For urgent orders with available
materials, we can complete within 7-10 days.
Q6: What are your payment terms?
A: We accept bank transfer, T/T, Western Union, and PayPal for
small amounts. Payment methods are negotiable.
Q7: Can you provide FOB prices?
A: Yes. We quote prices based on INCOTERMS including EXW, FOB, CIF,
and DDP.
Q8: How can I get your catalog and price list?
A: Please provide your email address or contact us directly through
our website.
Q9: Can I negotiate prices?
A: Yes, we offer discounts for bulk orders.
Q10: How much are shipping charges?
A: Shipping costs depend on shipment size and method. We provide
quotes upon request.
Q11: Do you offer custom design services?
A: Yes, OEM & ODM services are available. We can customize sizes,
LED colors, and functional icons according to your requirements.
Q12: Will you keep my custom design confidential?
A: Yes, we will not share or sell your design to others without
authorization.
Q13: What is the lead time for customized product samples?
A: Sample lead time is approximately 20-25 working days after
receiving mold cost and design approval.
Q14: What shipping methods do you use?
A: We ship via DHL, FedEx, UPS, EMS, by air, or by sea. You can
choose the method that works best for you.
Q15: How do you ensure product quality?
A: As ISO 9001 certified manufacturers with over 20 years of
experience, we conduct 100% testing of all products twice before
shipment.
