I discovered this 2x6 filter for 254 wavelength ... https://www.ebay.ca/itm/150-50-2mm-254nm-ZWB3-UG5-U-330-UV-Pass-Filter-Ultraviolet-Bandpass-Wavelength/223697116286 add to your lamps ... (Modified by Moderator on 2019-12-04 18:47:22)
