fla 9 Posted April 27, 2017 I bought a cut El heater panel backlight sheet a while back which i only recently started to get round to fit. However, it is a bit strange in how is operates - when the inverter is connected to a 'proper' connector it doesnt work at all. But if you run one of the leads across the battery supply so it sparks slightly the panel lights up. Similarly if you connect it to a power supply - ie when directly connected it doesn't light up but as you disconnect it when there is a tiny spark the panel lights up. Any advice here? Quote Share this post Link to post Share on other sites