Measured luminous flux, efficacy, spectra, CRI, and TM-30 color rendering of household lamps of every technology: LED, halogen, CFL and more, tested in our integrating sphere under identical conditions.
Every lamp on this page was measured in our HPCS-6500 integrating sphere, powered at
230 V / 50 Hz by the sphere’s built-in supply, after a stabilization period. Each
published value is the average of five consecutive readings. Every lamp carries an
internal ID (L0001, L0002, …) as its primary reference: one EAN barcode can cover
several versions of a lamp (daylight and warm white in the same box art), so the
barcode, where the lamp has one, is listed in the specs but does not identify the
sample. Where the packaging advertises flux, color temperature, or power, those claims
are published next to our measurements.
The spectrum (380 to 1050 nm), the ANSI/IES TM-30-18 color rendering analysis computed
from that spectrum, and the full metrics of every lamp are published below as raw files.
The instrument driver and the TM-30 tooling are open source at
git.b4l.co.th/B4L/HPCS6500-py.
Reproducible by design
Every device on this page ran the identical, versioned test procedure.
Efficacy against color rendering, one dot per lamp. Hover a dot to identify it, click it to open the lamp's page.
Pick lamps to compare
Up to 6 lamps plot at once so each keeps a distinct, colorblind-safe color. Click a column header to sort. All values are measured; the claim columns compare against the packaging.
Each spectrum normalized to its peak. Click a legend entry to hide a lamp.
TM-30 color vector graphics
The colored line is the lamp's gamut across 16 hue bins; the gray circle is the reference illuminant. Arrows point where the lamp shifts each hue: outward means oversaturated, inward means desaturated. Rf is fidelity, Rg is gamut (100 = reference).