Lighting Solution to Narrow Red Spectrum for Manufacturing Operation

I am looking for a lighting solution between 620 and 700 nm. Other wavelengths must be blocked or severely restricted. This is for a manufacturing operation where the chemicals are photosensitive to other wavelengths.

Based on the details provided, the first recommendation that comes to mind is our SimpleColor™ Red LED Strip Lights product, which is designed with a 630nm output.

However, it might be helpful to know that the dominant wavelength of this product is listed as 623nm, with a full width at half maximum of 15.5nm. As such, there is a possibility that the output could stray from the precise range specified in your email.