JinKo 66HL4M-BDV 620W N-Type Bifacial Dual Glass Solar Panel, 23.14% Efficiency

JinKo 66HL4M-BDV 620W N-Type Bifacial Solar Panel

The JinKo 620W solar panel price in BD is shown on this page. JinKo Solar is one of the world's biggest module makers, and the 66HL4M-BDV belongs to its N-type TOPCon bifacial dual-glass range, widely used in large solar parks and commercial rooftops.

N-type TOPCon power

Using 132 N-type monocrystalline cells in a 16 x 2 half-cell layout, the 66HL4M-BDV series covers 600W to 620W. This listing is the 620W version, with module efficiency of up to 23.14%. N-type TOPCon cells hold their output better in heat and degrade more slowly over the years than older P-type cells.

Bifacial dual glass

• Glass on both faces for strength, moisture resistance and long life
• Rear side collects reflected light for extra yield
• 2.0mm glass with anti-reflective coating
• Class II protection and IP68 junction box

Electrical figures

Across the series, maximum power voltage ranges from 40.16V to 40.88V and maximum power current from 14.94A to 15.29A, with the 620W model at the top of each range. These are high-current panels, so match them with an inverter or charge controller that accepts at least about 15–16A per MPPT input.

Planning a string

Add the open-circuit voltage of each panel in series and keep the total safely below the inverter's maximum PV voltage, allowing for the voltage rise on cool winter mornings. Our team can calculate this for Marsriva, Gospower, Rahimafrooz and other inverters.

Mounting

A south-facing tilt of about 20–25° suits most of Bangladesh. Raised mounting over a white or light roof improves the bifacial gain and keeps the panels cooler.

Buy from QASWATEC

QASWATEC supplies genuine JinKo solar panels with an invoice. Visit our Elephant Road, Dhaka showroom or order online for delivery across Bangladesh.