Fixings for Aluminium channel in display fridge? Electrical Advice

Fixings for Aluminium channel in display fridge? Discussion ThreadFixings for Aluminium channel in display fridge? Electrical Advice

Hello, I hope you are well, I need to add a light in a display fridge in a shop at the top, the are aluminium U Chanel’s at the top which are designed for attaching things similar to unistrut but much smaller but I’m unsure of the fixings I need, can’t use self tappers as is glass all on the other side ( please see picture not the best as it’s what they’ve sent me as I’ve not actually been out yet to see it.

Thanks

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