Cyclops Solar 12W 12V Solar Battery Trickle Charger: * Ideal for large trucks, SUVs, RV trailers and power boats * Link multiple like-units together for more output * Panel efficiently charges in all weather conditions, including overcast weather * Maximum charge up to 12W/600 mAh per hour * Designed for permanent or semi-permanent mounting * Solar power is clean and pollution-free and offers maintenance-free operation, unlike gas generators * Prevents the natural voltage drain of batteries over time, keeping your 12V batteries charged up * Dimensions: 8.5" x 16" * Includes: * 12V DC adaptor * 12V DC socket * Battery clamps * Extender cable * 4 stainless steel mounting screws * Recommended 10-AMP charge controller (sold separately) * Lower power output * Common use: battery maintenance, trickle charging * Lightweight * Portable * Weather resistant * Model# CYC-SOL12W