Yellow Green 0.4inch 7 Segment LED Display Common Cathode

Core Product Features
1. High-Efficiency Luminosity & Energy Savings
Optimized forward voltage (1.8-2.2V): Tailored to maximize luminous intensity while minimizing power waste. Unlike generic displays with higher voltage requirements, it operates seamlessly with standard low-voltage circuits (e.g., 3.3V or 5V systems), reducing the need for voltage regulators and cutting energy consumption by 25-30% compared to non-optimized alternatives.
Ultra-low operating current (5-10mA) + energy-saving design: Ideal for:
Battery-powered devices: Portable temperature monitors, handheld humidity meters, or wireless process sensors (extends battery life by 30-40%, reducing replacement frequency for end-users).
24/7 operated equipment: Multimedia set-top boxes, industrial process indicators, or home appliance control panels (lowers long-term electricity costs and heat buildup in enclosed enclosures).
2. Superior Visibility & Durability
Ultra bright white emission + yellow epoxy + black surface: The white hue delivers exceptional contrast against most device housings, while the yellow epoxy enhances light diffusion and resists scratches from daily use. Critical for readability in intense ambient light—from sunlit retail displays to factory floors—where dimmer displays fade or become unreadable.
Uniform segment illumination: Light distributes evenly across all 3 digits and 7 segments, eliminating "dark spots" that distort multi-digit values. This consistency is vital for precision applications like temperature readings, where even small misreads can cause operational errors.
3. Industrial-Grade Reliability & Longevity
Consistent operational stability: Built with high-quality LED chips and robust yellow epoxy encapsulation to resist voltage fluctuations and mechanical vibration. Ensures no flickering, segment dropout, or brightness degradation over time—even in harsh environments.
Extended service lifespan (exceeding industry averages): Supports 50,000+ hours of continuous operation (over 5 years of 24/7 use), outperforming standard displays (30,000-40,000 hours). Reduces maintenance downtime and replacement costs for commercial/industrial users.
4. Seamless Integration & Versatility
Global industrial dimensional standards: 30.1×16×7mm dimensions fit off-the-shelf PCBs, sockets, and enclosures—no custom machining or modified hardware needed. Simplifies integration into existing designs and speeds up production for manufacturers, reducing R&D time and costs.
Multi-color flexibility: Beyond ultra bright white, 6 additional colors cater to functional and aesthetic needs:
Red: For "alert" statuses .
Blue/Green: For modern smart home devices
Amber/Orange: For retro-style appliances 
Target Applications
Optimized for triple-digit numeric display needs across diverse sectors:
Numeric Displays: Retail price tags, queue number indicators , digital signage , or parking garage level markers.
Multimedia Products: Set-top boxes , media players , gaming consoles , or soundbars.
Temperature/Humidity Indicators: Industrial thermostats (e.g., "80°C"), home smart humidistats (e.g., "55% RH"), warehouse environmental monitors , or sous vide machine controls.
Process Indicators: Factory production counters , pressure gauges , flow rate monitors , or chemical dosage indicators .

Absolute Maximum Ratings(Ta=25ºC)

Code:Yellow Green- J

Code:Amber/Yellow -Y

Code:Orange -F

Code:Super Bright Red -R

Code:Ultra Bright Red -UR

Code:Pure Green -G

Code:Ultra Bright Blue -BH

Code:Ultra Bright White -WH

    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.

    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.

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 .