Hopefully you can steer me in the right direction. I have 2 x 120w Tao Tronic LED fixture's that include only the blue & white spectrum's. I'm seriously considering swapping some of the LED's out in hopes to make some overall improvements. However, I'm unsure where to purchase swappable replacements for a perfect fit in the fixture. Any ideas? If you sell the LED's individually, please let me know how to proceed with doing so. I appreciate the assistance.