Polycrystalline cell with 4BB has power around 3.5w-4.8w.
Polycrystalline cell with 5BB has power around 4w-5.5w.
You can buy samples in advance to confirm the size and utility by TT.
We do recycling and reusing various specification used solar cells.
All the contact informations you can find from the web: www.bocai-energy.com
E-mail address: firstname.lastname@example.org