Cost me about 25$. The 10w warm white are 10$ for 2 so 20 for that and the blurple led cost me 3 bucks for 6.6f i only used 2 feet for this lil project all from amazon. They have a pack of 20 10w warm white cob led for 15 bucks ima get 2 packs of that also. Planning on transitioning to flower in about 2 weeks