list compiled by cannedbread from this image of a 2014 show in London.
Mehdi's gear:
guitar: Kramer DMZ 2000
amp: Fender '68 Custom Twin Reverb amp
effect pedals: Boss DD-7 Digital Delay, Boss DD-20 Giga Delay, Electro-Harmonix Holy Grail, Zoom G1u, Yamaha Magicstomp, Digitech JamMan Looper Station, Boss RC-20 Loop Station, Fender Volume Tone
other gear: E-Bow, regular bow
in addition, he's mentioned liking the Akai Headrush pedal.
Solange's gear:
guitar: Silvertone Model 1448
amp: Fender '68 Custom Twin Reverb amp (that looks like it is falling apart)
effect pedals: Boss DD-7 Digital Delay, Boss Loop Station RC-2, Akai Headrush E1, Boss DD-6 Digital Delay, Zoom 505 II, Earnie Ball VP Jr., Korg ToneWorks 411FX
other gear: E-Bow, regular bow