Growking’s BluRail 40 Watt is a compact LED rail luminaire built for horticultural use. An independent test report from OSRAM’s Central Laboratory for Light Measurements documents the lamp’s electrical input around the nominal 40 W, together with full photometry, spectral power distribution and intensity diagrams. The spectrum shows a pronounced blue component near ~450 nm with supplemental red peaks around ~640–665 nm, suitable for vegetative growth while supporting later stages. The passively cooled rail form factor uses an external driver and operates silently without active fans. Growking’s public materials confirm BluRail as one of the brand’s three LED product lines alongside Rail and SOLaris.
