Roatan uses US American electric standard outlets, 120V.
If your device does not have US American standard plugs, please bring your adapter.
Simple European adapters (DIN, two prong, no ground) are available at a few stores in Coxen Hole for $5.
Protecting your electronics!
Power surges can happen when electricity comes back on after a black out (not very common but it can happen). To protect your delicate devices from surges and power peaks, consider buying surge protector (available at Radio Shack for $10)