*High efficiency and High power *Long-term electrical stability *Best quality

156mm poly solar cell ,4 watt solar cell     

PHYSICAL   

Dimension:  156mm x 156mm ± 0.5mm

CHARACTERISTISCS

Wafer Thickness:     200 um ± 30 um  

                                  180 um ± 30 um / -20 um        

Front(-)              Three 1.5mm wide bus bars (silver)with distance 52mm,

                           acid texturized surface with blue silicon nitride AR coating.

Black(+)            3.0mm wide silver/aluminum soldering pads,aluminun back surface field.

 TYPICAL ELECTRICAL CHARACTERISTICS

Efficiency	1640	1660	1680	1700	1720	1740	1760
Efficiency(min)%	16.4	16.6	16.8	17.0	17.2	17.4	17.6
Pmax(W)	3.991	4.040	4.088	4.137	4.186	4.234	4.283
Voc(V)	0.621	0.622	0.623	0.625	0.627	0.629	0.631
Isc(A)	8.203	8.267	8.335	8.398	8.454	8.506	8.561
Vmp(v)	0.519	0.520	0.521	0.523	0.525	0.527	0.529
Imp(A)	7.690	7.769	7.847	7.910	7.973	8.035	8.097

 *Data under standard testing conditional (STC):1,000w/m2,AM1.5, 25°C , Pmax:Positive power tolerance.

  TYPICAL TEMPERATURE       Voltage     -2.14      mV/K

   COEFFICIENTS                         Current    +4.93      mA/K

                                                                           Power      -0.43      %/K

 PACKAGING  

 Typical package for one carton contains 1,200 cells.The cells are sealed in cell box every 100pcs.Gross weight peri unit carton shall be around 17.1Kg.

Company Profile

Shenzhen Kewell Technology Development Limited is a high-tech Environmentally friendly enterprise,which was established in 2008.

With the rapid development of solar industry, Kewell have owned three subsidiary companies - one silicon mine in Jiujiang jiangxi province(Mainland China),one hardware company and one solar panel factory in Dongguan. Our solar panel factory employed around 200 skilled workers, 10 senior R&D engineers, 10 overseas salesperson, 2 after-sale service clerks, and 3 production instructors.We would like to offer our customers comprehensive service and technical support from pre-sale to after-sale service. Under strict quality control system. Our products include: (1)125mm mono solar cell &156mm poly and mono solar cell (2)  3W-300W mono-crystalline and poly-crystalline silicon solar panel (3) 5W-50KW home-use or roof solar power system(on-grid&off-grid) Which are widely exported to Europe,America, Africa, Asia and gain a higher reputation.We also offer OEM,ODM,OBM service as per customer requirement and aim at making a greater contribution to the usage of solar energy globally.  

156mm poly solar cell,4 watt solar cell