LED packagesCree XLamp XP-G4 HI
Cree XLamp XP-G4 HI — LED packages. Selection notes: Check the exact color bin, drive current, junction temperature and footprint.
LED packages
THE LED ENGINEERING REFERENCEBetter data.
Better data.
Brighter decisions.
Explore LEDs, drivers, luminaires and displays. Compare sourced parameters, use engineering tools and understand the conditions behind each number.
47 product & series records12 engineering categories8 languages
Conditions, not just numbers Compare like-for-like data Published reports, not invented tests
EXPLORE THE SYSTEM
All categories From chip to application.
Find components, finished products and the engineering around them.
WORK FROM THE REQUIREMENTS
All calculators Useful tools, explicit limits.
Calculate a first estimate, then verify it against your actual system.
PRODUCT DATA
Browse the directory Start with the source.
Real product names, documented ratings and a clear distinction between a model and a series.
LED packagesLUXEON HL4Z
LUXEON HL4Z — LED packages. Selection notes: Check the exact color bin, drive current, junction temperature and footprint.
LED packages
LED packagesLUXEON 5050
LUXEON 5050 — LED packages. Selection notes: Check the exact color bin, drive current, junction temperature and footprint.
LED packages
TPS92515
TPS92515 — Driver ICs. Selection notes: A driver IC is not a complete, isolated mains power supply.
Driver ICs
MEAN WELL HLG-240H-48
MEAN WELL HLG-240H-48 — Drivers & power supplies. Selection notes: Match the complete model suffix, rated current and constant-current voltage window.
Drivers & power supplies
Philips DN142B 10S/840 PSU-E WR
Philips DN142B 10S/840 PSU-E WR — Luminaires & lamps. Selection notes: Use the exact order code and regional configuration.
Luminaires & lamps
Samsung The Wall LH012IWAMWS/XU
Samsung The Wall LH012IWAMWS/XU — LED displays. Selection notes: Keep module resolution, pixel pitch, cabinet dimensions and operating brightness in the same configuration.
LED displays
ams OSRAM ALIYOS
ams OSRAM ALIYOS — Mini / Micro LED. Selection notes: Keep module resolution, pixel pitch, cabinet dimensions and operating brightness in the same configuration.
Mini / Micro LED
EVIDENCE BEFORE CONCLUSIONS
A rating is not a measurement.
We separate manufacturer specifications, editorial assessments and actual test reports. Unknown values stay unknown.
Our editorial method ↗Record the conditions
Current, temperature, variant and measurement geometry matter.
Keep the original source
Trace a value to the document, not a marketing badge.
Report uncertainty
A real test needs a sample, instruments and a reproducible method.
DESIGN WITH CONTEXT
All guides Engineering, explained.
Practical guides for selection, measurement, thermal and optical decisions.
Read an LED datasheet without mixing ratings
Start by identifying what the number describes: an absolute limit, recommended operation, bin boundary or typical test result.
Read the guideSelect a constant-current driver by operating window
A constant-current load must fit the driver’s current setting and its regulation-voltage window over temperature.
Read the guideDriver IC or finished power supply?
A constant-current load must fit the driver’s current setting and its regulation-voltage window over temperature.
Read the guideDOCUMENTS & METHODS
Standards & references Know what a standard covers.
Official document indexes and independent reading notes, not copied standards or certification claims.
ANSI/IES LM-79-24 — Scope and starting point
Optical and electrical measurement of solid-state lighting products..
Read the guideANSI/IES LM-80-21 — Scope and starting point
Flux maintenance measurement for LED packages, arrays and modules; not a complete-luminaire lifetime guarantee..
Read the guideANSI/IES TM-21-21 — Scope and starting point
Long-term flux-maintenance projection from suitable LM-80 data; a projection is not a field failure-rate study..
Read the guideTECHNICAL UPDATES
Industry source notes Follow the original publication.
Source-dated notes; a datasheet revision is not a new-product launch.
CL-700A: a source note on the expanded spectral range
Konica Minolta announced CL-700A on 5 December 2025.
Read the guideHLG-240H: February 2026 data-sheet notes
The HLG-240H data sheet carries a 4 February 2026 revision date.
Read the guideHELP BUILD THE REFERENCE
Better records make better decisions.
Suggest a product, contribute an engineering guide or submit a documented measurement.