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Gretchen, there's a jillion LED lights for photo work that are balanced at 5600 K. Many are portable and work on batteries. Here's an example.... https://www.bhphotovideo.com/c/search?atclk=Head+Type_Light+Panels&ci=12248&N=3988592074+3942861147 I don't know how long they last on any certain battery, but these are often used in architectural setups where they may be on for hours. However, you might give BH a call and ask to talk to one of these dudes... https://www.bhphotovideo.com/c/browse/continuous-lighting/ci/22521/N/3988592086 Tell them exactly what you want to do and they can probably help. Ask how long batteries will power the light. You may need to purchase a light stand .... about $30. There are over 2000 entries under LED lights at BH, so looking for something on your own could take a while. Suerte, bab On Tue, Oct 17, 2017 at 5:42 PM, mali moir <[log in to unmask]> wrote: > Hi all > I would also like to find a great lamp, for my students as well. > I have several battery led lamps, none of them are bright enough. > It's often hard to find details of the lumens in the ads. > Mali > > Sent from my iPhone > > On 18 Oct 2017, at 2:25 am, gretchen halpert <[log in to unmask]> > wrote: > > Hi Folks, > > I'm looking for a battery operated lamp to use during workshops that has > good color balance. > > Many people use OTT lights. I like them well enough for sketching, but not > for watercolor work or direct scientific lighting. I don't like the color > the OTT puts out, nor the difficulty getting proper scientific lighting. > > This lamp was suggested, but I'm not sold on it either. https://www. > barnesandnoble.com/reviews/home-gift-collapsible-led- > desk-lamp-reading-light/27433837?ean=9780594572008#reviews-header > > Any suggestions? It has to be cordless. > > Thanks for your experience. > > Gretchen > > Gretchen Halpert > Illustrator/educator > Scientific Illustration Distance Program > www.gretchenhalpert-distanceprogram.com > www.gretchenhalpert.com > > > > > > ________________________________________________ > > Need to leave or subscribe to the Sciart-L listserv? Follow the > instructions at > http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv > > ________________________________________________ > > Need to leave or subscribe to the Sciart-L listserv? Follow the > instructions at > http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv > -- Bruce Bartrug Nobleboro, Maine, USA [log in to unmask] www.brucebartrug.com •The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing. - Albert Einstein •In the end, we will remember not the words of our enemies, but the silence of our friends. -Martin Luther King Need to leave or subscribe to the Sciart-L listserv? Follow the instructions at http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv