There are many aesthetically pleasing fittings on the market which can be standalone or integrated into most standard fittings.
Either way, your emergency lighting should be tested regularly with a full discharge of the batteries every 12 months. Your emergency lighting should also be installed to the current standards to ensure there is sufficient light, and in the correct location to aid your escape if required.
At RJA Electrical we can advise on an existing emergency lighting installation or design, as well as install and maintain a new installation, again with the correct certification which all insurance companies are familiar with.