Boss ME 80 ME 90 Guitar Multi-Effects Pedal with Power Adapter
Aliexpress UK
These power supplies also work in all countries which use 100-240v. You will simply need a plug tip converter from UK to your countries plug type (which we don't provide). Regulated Power. 100-240v Power Compatible.
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These mains adapters have been tested by an employee who is a musician as well as other guitarists using Boss stomp pedals.
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BOSS ME-50B BASS GUITAR MULTIPLE EFFECTS POWER SUPPLY REPLACEMENT ADAPTER UK 9V
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AC/DC POWER SUPPLY PLUG ADAPTER FOR BOSS ME-50 ME-70 ME-80 GUITAR EFFECTS PEDAL
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You will simply need a plug tip converter from UK to your countries plug type (which we don't provide).
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BOSS ME-50 GUITAR MULTIPLE EFFECTS POWER SUPPLY REPLACEMENT ADAPTER UK 9V
eBay
eBay