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Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display for Digital Timers

Name: Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display for Digital Timers
Brand: Shenzhen Guangzhibao Technology Co., Ltd.
SKU: LB40284IWH3B-D
Price: 0.20 USD
Availability: InStock

Brand Name:	LIGHT-BO
Model Number:	LB40284IWH3B-D
MOQ:	1000
Price:	Negotiate
Payment Terms:	T/T,Western Union,
Supply Ability:	20000 PCS/Day

Detail Information

Product Description

Detail Information

Place of Origin:

Shenzhen, China

Certification:

ISO9001&RoHS

Polarity:

Common Anode

LED Color:

Ultra Bright White

Forward Voltage:

2.8-3.2V/LED

Forward Current:

5-10mA/LED

Origin:

Shenzhen

Brandname:

LIGHT-BO

Packing:

EPE+Carton

Packaging Details:

EPE+CARTON

Supply Ability:

20000 PCS/Day

Highlight:

7-segment LED display common anode

ultra bright white 7mm LED display

4-digit 7-segment display for timers

Product Description

Ultra Bright White 7mm 4-Digit 7-Segment LED Display

Space-saving, high-visibility solution engineered for digital timers, LED clocks, and compact home appliances. Designed to prioritize miniaturization, clear time readouts, and energy efficiency.

Key Features for Digital Timers & Clocks

Ultra-Compact Design for Timekeeping Devices

Slim 32.1×10×5.8mm dimensions fit portable digital timers and slim LED clocks
7mm (0.28-inch) character height balances miniaturization with readability
Industrial standard size enables drop-in replacement for outdated timers/clocks

Superior Visibility for Time Readouts

Ultra bright white illumination ensures clarity in bright environments
Yellow epoxy black surface softens harsh white light while boosting contrast
Even segment lighting guarantees consistent readability of time details

Energy Efficiency & Reliable Performance

Low power consumption extends battery life for portable timers
Stable operation withstands temperature fluctuations and minor vibrations
Long lifespan (50,000+ hours) matches 5-8 year service life of most timers/clocks

Versatility & Compliance

Common anode polarity works with standard timer/clock driver ICs
Multi-color options available: red, blue, green, amber, orange, and yellow
RoHS/REACH compliant for global market safety standards

Technical Specifications

Category	Parameter	Specification
Basic Design	Display Type	4-Digit 7-Segment LED Display
Basic Design	Polarity	Common Anode
Basic Design	Character Height	7mm (0.28 inch)
Basic Design	Outer Dimensions	32.1 × 10 × 5.8mm
Basic Design	Segment/Surface Finish	Yellow Epoxy with Black Surface
Optical Performance	Emitting Color	Primary: Ultra Bright White; Optional: Red/blue/green/amber/orange/yellow
Electrical Parameters	Forward Voltage (VF)	Optimized for high luminous intensity
Electrical Parameters	Recommended Forward Current	5-10mA per LED
Electrical Parameters	Power Consumption	Low (energy-efficient for continuous timekeeping)
Quality & Compliance	Core Advantages	Even light distribution, bright ambient reliability, stable performance
Quality & Compliance	Compliance	RoHS Compliant, REACH Compliant

Absolute Maximum Ratings (Ta=25°C)

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	°C
Storage Temperature Range	Tstg	-40~+85	°C
Solder Temperature (≤3 seconds)	Th	260	°C

Electrical Characteristics by Color Code

Yellow Green (Code: J)

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	1.8	2.4	V
Reverse Voltage	Vr	Ir=10uA	5		V
Luminous Intensity	Iv	If=10mA	30	40	mcd
Wavelength	Dλ	If=10mA	569	574	nm

Amber/Yellow (Code: Y)

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	1.8	2.5	V
Luminous Intensity	Iv	If=10mA	60	80	mcd
Wavelength	Dλ	If=10mA	585	595	nm

Ultra Bright White (Code: WH)

Parameter	Symbol	Condition	Min	Typ	Max	Unit
Forward Voltage	Vf	If=10mA	2.8		3.2	V
Luminous Intensity	Iv	If=10mA	120		140	mcd
LED Color Temperature	K	If=10mA	5500	20	6800	K

Applications

Digital Timers: Kitchen countdown timers, fitness timers, industrial process timers
LED Clocks: Slim wall clocks, desk clocks, smart home clocks
Home Appliances: Microwave timers, oven timers, washing machine cycle timers
Instrument Panels: Audio equipment, set-top boxes, portable generators

Why Choose This Display for Digital Timers?

Time readout clarity with ultra bright white light and yellow epoxy surface ensures visibility at a glance. Ultra-compact size works for portable timers and slim clocks without compromising device design. Low current use extends portable timer battery life. Industrial standard size enables drop-in replacement for old displays. RoHS/REACH certification simplifies export to international markets.

Order & Logistics Information

Minimum Order Quantity: 300 pieces for standard ultra bright white models; 500 pieces for custom colors/configurations.

Packing: Anti-static EPE + carton with individual wrapping to protect surfaces and pins.

Delivery Time: 5-7 days for standard models; 10-12 days for custom colors.

Transport: Express, Air, Ocean available.

Manufacturer Information

SHENZHEN GUANGZHIBAO TECHNOLOGY CO., LTD. (BRAND: LIGHT-BO) established in 2006. ISO 9001:2015 certified company with over 15 years OEM and ODM experience. Committed to providing high quality, low cost customized solutions.

Frequently Asked Questions

Are you trading company or manufacturer?

We are original manufacturer with more than 20 years experience in optoelectronic LED displays.

What is your main products?

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 more.

What is your MOQ?

Our MOQ is 1000 pcs, but we can accept sample orders and small orders with quantity less than our MOQ.

Before placing order, Can I get some samples for test?

Yes. We can provide 5-10 free samples for your testing, but the freight cost will be borne by the customer.

How long is your delivery time?

Delivery time: About 10-20 days; According to order quantity and raw materials. For urgent orders with available raw materials, we can adjust production plan for 7-10 day delivery.

What is your terms of payment?

We accept bank transfer, T/T, Western Union and Paypal with small amount. Payment methods are negotiable.

Can you quote me FOB prices?

Yes. We can quote prices based on incoterms EXW, FOB, CIF, DDP.

Can I negotiate the prices?

Yes, we may consider discounts for bulk orders.

Can you do custom design products?

Yes, OEM & ODM service are available. We can customize sizes, LED color and functional icons according to your requirements.

How do you ensure the quality of your products?

We are ISO 9001 QMS certified manufacturers with more than 20 years experience. We conduct twice 100% testing for all products before shipment.

Tags:

7 Segment LED Display

14 Segment LED Display

16 Segment LED Display

Alphanumeric LED Display

5x7 Dot Matrix LED Display

8x8 Dot Matrix LED Display

Dot Matrix LED Display

Custom LED Display

Oven Timer LED Display

Temperature Control LED Display

Electric Scooter LED Display

Numeric LED Display

LED Clock Display

Arrow LED Display

LED Backlight

LED Light Bar

SMD LED Display

7 Segment LED Display

14 Segment LED Display

16 Segment LED Display

Alphanumeric LED Display

5x7 Dot Matrix LED Display

8x8 Dot Matrix LED Display

Dot Matrix LED Display

Custom LED Display

Oven Timer LED Display

Temperature Control LED Display

Electric Scooter LED Display

Numeric LED Display

LED Clock Display

Arrow LED Display

LED Backlight

LED Light Bar

SMD LED Display

products details

Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display for Digital Timers

Ultra Bright White 7mm (0.28-Inch) 4-Digit 7-Segment Common Anode LED Display for Digital Timers

7-segment LED display common anode

ultra bright white 7mm LED display

4-digit 7-segment display for timers