Coleman 2W Solar Battery Maintainer: * Power: 2W * Type of cell: amorphous solar * Frame: ABS plastic * Voltage: 12V * Temperature: -40 to 176 degrees F * Dimensions: 19 5/4" x 6 1/2" x 11/8" * Amperage: 133 * Weight: 1.8 lbs * Model# 58012