Our Product: Mono-crystalline silicon Panel Poly-crystalline silicon Panel On-grid solar system Off-grid solar system Portable solar system 

Maximum power (watt)                                                        250 W
Production tolerance                                                           +3% /-3%
Maximum power voltage                                                     34.20V
Maximum power current                                                     7.32 A 
Open circuit voltage                                                             43.60 V
Short circuit current                                                              8.10A
Size of module                                                                     1956*992*45(mm)
Frame(type, material and thickness) Anodized Alum. Alloy 45mm thickness
Number of cells                                                                   72pcs
Size of cells(wide and high)                                              156mm*156mm
Weight per piece                                                                 26 KG
By pass Schottky diode(6pcs)                                          10A
Type of junction box                                                            TUV certified junction box
Certificates                                                                           CE, ROHS,ISOIEC,TUV
Cable type and length
connector type                                                                     4c㎡ TUV certified cable 90cm long
Multi contact connector
(compatible to MC type IV)
Maximum system voltage                                                 1000V
Temperature coefficient of Isc                                         ±0.04%℃
Temperature coefficient of Voc                                        -0.3%℃
Temperature coefficient of power                                   -0.5%℃
Temperature coefficient of Imp                                       +0.08%℃
Temperature coefficient of Vm                                         -0.33%℃
NOCT(nominal operating cell temperature)                 47℃(±℃)
Insulation                                                                             ﹥﹦100MOhm
Voltage standoff                                                                  AC2000V, DC 3000V
Wind bearing                                                                       60m/s(200kg/sq.m)
Impact resistance hail impact test  227g steel ball fall down from 1m  height
Encapsulated with toughened glass Low iron tempered glass with thickness of 3.2mm,light transmittance above91%
Conversion                                                                        efficiency  15.5%
Quality guarantee                                                             2 years product warranty,10years 90% and 25years 80% of the power