I have had my "OttLite Natural Daylight LED Flex Lamp" - White about 4 years. I got a recommendation to buy the daylight LED bulbs for coin photos, but I do not remember where it came from. Walmart
is out of stock on the lamp, and they have a replacement for $73. This desklamp is getting hard to find as it appears it getting phased out. I found it on Amazon
sold by overstock.com for $54. Here is a photo of what I use.
Good luck on taking your photos. If you decide to buy, I hope it helps. If you do get it, I would be happy to give you some ticks I learned to bring out the color.