The following details is regarding our products, The mono-crystalline and poly-crystalline solar cells The mono-crystalline and poly-crystalline solar modules; Mono-crystalline solar modules 120W down: HSM-5W; HSM-10W; HSM-30W; HSM-40W; HSM 60W-90W Mono-crystalline solar modules 120W up: HSM 165W-180W; HSM-210W-240W Poly-crystalline solar modules HSP 160W-185W, HSP 220W-250W Photovoltaic modules and solar energy system. It's very easy and reliable to use our products from sun power to house electric power! It's the best choice for solar-house-plan-project: just plug-n-Play for solar power! We have our own project department with a very professional team for PV system design. So we can design all kinds of solar energy systems according customers' requests.