Solar Panels of 40 Watt Watt are basically used for small systems like Solar Lanterns, Solar Mobile Charger, small Solar Battery Banks, Solar Garden Lights, Solar Street Lights Etc. for complete information like, Size, Watt, Volt, and technical information please see in relevant products specifications. 

300W SOLAR PANEL SPECIFICATIONS:

Rated Power: 300 W

Open Circuit Voltage: 44.5 V

Max. Power Voltage: 35.5 V

Short Circuit Current: 8.65 A

Max. Power Current: 8.22 A

Output Tolerance: (%) +/- 4.99

Module Dimension: L1968 x W987 x H40mm

Weight: 21 KG

Cell: 72mm x156mmx 156mm

Operating Temperature: From -40°C to +85°C

Module Efficiency (%): 15.44 (%)

Max. System Voltage: 1000 VDC

Series fuse rating :15 AMP

Junction Box: IP 65 / IP 67

Output Cables: 4mm²,min.900mm length

Connectors: MC4 Compatible

Protection: SCHOTTKY BYPASS DIODES

Cell Layout: 10 x 6

Frame: Anodized Aluminum