We do a lot of rallying and temporary holiday sites so have no electric. In winter months the better half complained about getting changed for socials with only one light on and she also commented about the cold spots because i wouldn't have the fan on on the Truma heating. Before Easter I bought a 90 watt panel for £199 with a carry bag and controller. Battery stayed high and wife was warm and well lit. Should have bought it years ago!!!! Planning to change over to LED lights now.