Monocrystalline 12v charging unwired 4watt resin solar panel measuring 285mm x 140mm x 3mm approx,these solar panels are ideal for use trickle charging 12v batteries in cars,caravans and boats year round,supplied with 5m of cabling and diode protection these are a great panel to use with our small 12v fans if you want to make a solar ventilator as they will enable the fan to run at full speed in bright sunshine,price includes vat and delivery.