In the words of Thorpy FX:

The Electric Lightninghas two sides: a complex valve overdrive with 3 band Eq and a high headroom super clean boost on the right. The pedal is designed so that the boost runs into the valve overdrive side. This arrangement yields three distinct tonal variations ranging from clean boost all the way through to full and fat saturation. The pedal is designed to clean up impeccably from your volume control and as such it is ideal for dynamic players who like to constantly adjust their playing style.