Dear Jim, 1. Some LED lights produce UV, some don't. Generally speaking, a white LED light works in a way similar to fluorescent lighting: UV or blue light is produced, and then phospors convert this into various longer wavelenghts, which together form white light. If a UV LED is used as a basis, it is possible that the LED light still emits some UV, the same as with fluorescent tubes. In case a blue LED is used, the light will not contain UV. However, in that case it is likely that the rendering of violet colors will suffer. 2. I cannot say. Not all LEDs produce UV, and obviously light levels and exposure time are important factors. 3. Yes. I would suggest looking at LED lights made specifically for museums by Soraa. Philips also have a specific line of museum lighting. Both claim to emit no UV nor IR. The accurate rendering of colors and whites is especially important in museums. This is difficult to achieve, and the reason why generic LED lights or generic fluorescent tubes do not suffice.
Kind regards, Thomas Michgelsen furniture conservator ****** Unsubscribe by sending a message to [email protected] Searchable archives: http://cool.conservation-us.org/byform/mailing-lists/cdl/
