Light reducing film for light box

Susi Pancaldo <s.pancaldo [at] ucl__ac__uk> writes

>I am looking into ways of reducing lux levels for a light-box
>display of microscope specimens from approximately 950 lux to,
>ideally, 50 lux.  The lights in the light-boxes are LED so I am not
>concerned with UV levels, just light intensity. ...

Is it not possible to disconnect some of the LEDs so as to reduce
the light level, rather than using a light-absorbing film or filter?

Dr Barry Knight
Head of Conservation Research
The British Library
96 Euston Road
London NW1 2DB
+44 20 7412 7229
Fax: +44 20 7412 7658


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                  Conservation DistList Instance 27:8
                 Distributed: Thursday, August 8, 2013
                        Message Id: cdl-27-8-005
                                  ***