Awesome that you can customize this to have as many or as few lights as you'd like. The extra chips were super cheap and easy to install. I put three of the 60's on my 250G, and one each on my 55G column and 20G tall. All of them look great. I did have one chip that is half dead, pretty sure it's just a bad solder. I'd take it apart and fix it, but for $1.50 not sure it's worth the hassle.
