/diy/ - Do It Yourself

>>1844723
It depends on what you want from your panel and what you're using it for. Attaching low impedance load to it could easily half your available power so instead of 7 W you would only get 3.5 W, but if you had MPPT you would get 6.5 W (some loss due converter inefficiency) in same conditions. You can get pic related for less than $10 so implementing it yourself is not worth the effort unless you want to learn how it works.