Red/Pure Green LED Display 7 Segment 17mm common cathode for
Digital Refrigeration Systems
Ultra Red Green LED
17mm 7-Segment Cathode
Digital Refrigeration LED
7-Segment Cathode 17mm
Red Green Fridge Display
Product Overview
Light-Bo's customized 3-digit 7-segment LED display, featuring a
0.67-inch (17mm) character height and integrated minus sign, is
engineered for versatile performance in home appliances and climate
control systems. With robust package dimensions (47×22×8mm) and
dual-color options—ultra bright red (620-625nm) and pure green
(515-525nm)—it delivers clear visibility for both positive and
negative values (thanks to the minus sign). Configured as common
cathode (with common anode also available), this display balances
high luminous intensity (80-100mcd) with low power consumption,
making it ideal for air conditioner controls, refrigerator
indicators, and heating/cooling systems.
Main Product Image
Key Features
3-Digit with Minus Sign: Unique design includes a minus sign for displaying negative values
(e.g., temperature below zero), critical for climate control
systems.
Dual Color Options: Ultra bright red (620-625nm, 1.8-2.3V) and pure green (515-525nm,
2.8-3.3V) cater to diverse appliance aesthetics and functional
needs, with additional colors available (blue, ice blue, white,
etc.).
Optimal Size: 0.67-inch (17mm) character height and 47×22×8mm dimensions ensure
readability without occupying excess space in appliance panels.
High Visibility: 80-100mcd luminous intensity and white segments on a black surface
(with protective film) guarantee clarity in bright or dim
environments.
Energy Efficient: Low forward current (5-10mA/LED) minimizes power usage, ideal for
long-term operation in home appliances.
Easy Integration: Common cathode configuration (common anode optional), IC
compatibility, and simple assembly streamline installation into PC
boards.
Durable & Compliant: Stable performance, long lifespan, and RoHS certification ensure
reliability in household and climate control applications.
Detail Image
Technical Specifications
| Specification | Ultra Bright Red | Pure Green |
| Brand Name | Light-Bo | Light-Bo |
| Digit Count | 3 digits with minus sign | 3 digits with minus sign |
| Character Height | 17mm (0.67 inch) | 17mm (0.67 inch) |
| Package Dimensions | 47×22×8mm | 47×22×8mm |
| Polarity | Common Cathode (Common Anode optional) | Common Cathode (Common Anode optional) |
| Wavelength | 620-625nm | 515-525nm |
| Luminous Intensity | 80-100mcd | 80-100mcd |
| Forward Voltage | 1.8-2.3V/LED | 2.8-3.3V/LED |
| Forward Current | 5-10mA/LED | 5-10mA/LED |
| Surface Design | White segments on black surface with film | White segments on black surface with film |
| Compliance | RoHS certified | RoHS certified |
Applications
Ideal for:
Air conditioner and refrigerator controls
Heating, cooling, and climate control systems
Home electronic appliances requiring numeric readouts (including
negative values)
Temperature indicators and regulatory displays
Application Scenario Image
Order & Logistics
Minimum Order: 1000 pieces
Trade Term: EXW
Payment Terms: T/T, WU
Origin: Guangdong, China (Mainland)
Transport Options: Ocean, Air, Land
Production Capacity: 100,000 pcs/week
Packing: EPE + Carton (secure protection for segments and minus sign)
Delivery Time: 5-7 days
Why Choose This Display?
Light-Bo's 3-digit 7-segment display with a minus sign combines
versatility (dual colors, negative value support) with reliable
performance, making it perfect for climate control and home
appliances. Its 0.67-inch height ensures readability, while low
power consumption and RoHS compliance guarantee efficiency and
safety. With easy integration, stable operation, and a high weekly
production capacity, it's a trusted solution for air conditioners,
refrigerators, and heating systems needing clear numeric
displays—including negative values.
