LED Diode Q&A

Expert answers to common LED diode questions: forward voltage, current, binning, package types, failure modes and selection guidance from Queendom LED engineers.
LED lifespan testing standards infographic showing LM-80, TM-21, L70 and B50 metrics with lumen maintenance decay curve
LED Lifespan Testing: LM-80, TM-21, L70 & B50 | Queendom

LED lifespan is not a marketing number — it is a measured, projected, and verifiable [...]

21
Sep
3535 Ceramic LED Chip Datasheet: Thermal Management, LM-80 Lifetime Testing, and Selection Guide
20.09.2026

The 3535 ceramic LED package has become a workhorse for high-reliability applications ranging from medical [...]

Ceramic LED Chips: Thermal Management & AEC-Q102 Guide
19.09.2026

Technical guide to ceramic LED packaging thermal management and AEC-Q102 automotive qualification standards for B2B [...]

LED Lifetime Standards: LM-80, TM-21 & L70 for B2B Procurement
19.09.2026

Technical guide to IES LM-80, TM-21, and L70 lumen maintenance standards for evaluating LED lifetime [...]

Infrared LED Chips for Plant Growth: 730nm vs 850nm Wavelength Selection Guide
17.09.2026

Compare 730nm far-red vs 850nm near-infrared LED chips for horticultural lighting: phytochrome effects, ceramic package [...]

UVA 365nm LED Curing: Process Technology, Selection Criteria, and Retrofitting Guide
16.09.2026

Ultraviolet (UV) curing uses light to polymerise inks, coatings, adhesives, and resins almost instantly. For [...]

Ceramic LED Chips and AEC-Q102: What Automotive Buyers Must Know
16.09.2026

Automotive exterior lighting has moved beyond simple illumination. Adaptive driving beam (ADB) headlamps, laser-radar (LiDAR) [...]

SWIR LEDs in Machine Vision: Application Deep Dive and System Design Notes
16.09.2026

Short-wave infrared (SWIR) light sources are transforming industrial machine vision. While visible imaging sees color [...]

How to Choose a SWIR LED Light Source Supplier – A Procurement Guide
16.09.2026

Short-wave infrared (SWIR) LED chips are one of the fastest-growing niche segments in solid-state lighting. [...]

UV-C LED Disinfection: How It Works, Safety Limits, and Selection – Q&A
16.09.2026

UV-C LED disinfection: germicidal mechanism, dose engineering, safety limits per IEC 62471, LED vs mercury, [...]

What Are SWIR LEDs and How Do They Work? – A Buyer’s Guide
16.09.2026

Short-wave infrared (SWIR) LEDs in machine vision: how they work, which wavelengths matter, packaging options, [...]

What Is an LED Chip and How Does It Work?
16.09.2026

An LED chip is the core light-emitting component inside every LED product. Whether you are [...]

This site uses cookies to offer you a better browsing experience. By browsing this website, you agree to our use of cookies.
More info Accept
Privacy Policy | Terms of Service | Cookie Policy