...I agree with ToddsPoint ... too powerful ...those things are good for circuit board repair, not so much for coin (object - sized) photos ... have you considered a simple table stand for your phone? ...
PHOTO TIPS:
(1.) Place your subject on a
plain surface, such as a flat sheet of copy paper. Avoid holding it in your hands, & avoid any background with detail in your picture. Background detail may cause the auto-focus to highlight the background, leaving your subject blurry. Too many photos here with great shots of fingerprints, but the subject is out of focus ... I've seen clearer pics of Bigfoot flying a UFO, chasing the Loch Ness monster ...
(2.) Avoid direct light if possible, choosing a generally well-lit environment. After placing the subject on a
plain background, try to get directly overhead as possible, without casting any shadows on the subject ... this may require moving your stand, your subject, or both ... be patient ...
(3.) Check your photo before posting it. Make certain the the object is in focus, well lit enough for all to see ...