Spectrum Illumination BL619-660 Back Light Strobe

The Spectrum Illumination BL619-660 Back Light Strobe is a 24 VDC LED backlight panel designed for machine-vision applications, providing red illumination at 660 nm to yield bright silhouettes and precise edge definition. This unit is part of Spectrum Illumination’s Standard Series and operates directly from 24 VDC with no external driver required, and it supports strobe control via a PNP input (OFF < 1 VDC; ON +5 to +24 VDC). The color designation for this model centers on red at 660 nm, with spectral characteristics around 660 nm (dominant wavelength 660 nm, typical range 648–667 nm, bandpass ~17 nm) and an LED life rating up to 100,000 hours. It ships with a 4-meter cable and offers diffuser options including WD White Diffuser, CC Clear Cover, SD Standard Diffuser, TFD Thin Film Diffuser, and P Polarizer to tailor illumination for your subject. When used in continuous mode, the light should be mounted to a metal structure to aid heat dissipation. The BL619-660 features a light density of 12 LEDs per square inch, and Spectrum’s backlights are designed for reliable operation with a claimed 10-year warranty on the standard line. Standard sizes are available across a range, with custom sizes offered in 1-inch increments to fit nonstandard fixtures.