I bought ours here;
Excellent info there and the colors are accurate.
Round bulbs give wide light patterns for general use - the flat panel will give a spot effect when placed in the fixture carefully.
I put a low power red bulb by the bed-nice and soft- or try a blue or green one!
PS The larger the LED's and fewer the number of LED's in each unit, the more spotty or disco light effect you'll get. Many small ones give smoother light. Get it?