Tri-Color Customizable 4 Digit 7 Segment LED Display for Refrigerator Temperature Control

Optimized for small home appliances, audio equipment, and industrial instrument panels, this 4-digit common cathode 7-segment LED display delivers clear, reliable numeric readouts in diverse environments.

Engineered with industrial-standard 47 x 22 x 9 mm dimensions, this display fits seamlessly into standardized PCB layouts, eliminating the need for custom structural redesigns for manufacturers. Featuring evenly distributed segment luminosity, high luminous intensity output, and extremely low current operation, it delivers clear, glare-free readouts even in bright ambient light. With low power consumption, long service life, and dual RoHS/REACH compliance, it balances energy efficiency and reliability for 24/7 operation.

• Evenly distributed segment luminosity with ≤5% brightness variation
• High luminous intensity output for clear visibility in sunlight and bright indoor lighting
• Crisp, uniform readouts for temperature values, humidity levels, and timer countdowns

• Extremely low current operation for battery-powered devices
• Low power consumption meets global energy-saving standards
• Extends battery life to 6-12 months on single charge

• Industrial standard dimensions match universal PCB layouts
• Common cathode polarity works with mainstream driver ICs and microcontrollers
• Easy assembly supports automated production lines

• Stable performance in variable temperature and vibration environments
• 50,000+ hour lifetime matches 5-8 year appliance service life
• Dual RoHS/REACH compliance for global market access

This display is purpose-built for numeric readout scenarios across residential and light industrial fields:

• Small Home Appliances: Smart thermostats, mini rice cookers, portable kitchen timers, air fryers, humidifiers/dehumidifiers
• Audio & Multimedia Equipment: Amplifier volume displays, mixer channel indicators, home theater receiver status panels
• Instrument Panels: Temperature/humidity indicators, process control meters, portable testing devices, security system numeric readouts

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.

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 .