It is a polycrystalline 140-watt panel featured by

- Four Corner Protectors that protect you from accidental scratches or uncomfortableness from the sharp corners.

- Free Z Bracket Mounting Set that is $10 value if you buy separately, including 4 Z brackets and 8 sets of bolts, nuts and washers.

- Tempered front glass maximizes impact resistance.  

Corrosion-resistant frames with reinforced joints are more durable and last longer than most roofs.  Its junction box carries MC4 connectors with 32-inch cable.  It's ideal for RV, Boat, etc. 12, 24 or 36 volts off-grid battery charging system.