Mains Rechargeable emergency fluorescent light see details (Harborne B32)

Hi all, this is what I think is called a Mains Rechargeable Emergency wall mounted fluorescent light, the sort that comes on if the power fails. I bought this from a car boot sale years ago intending to have it installed in my garage but it was just left on the garage shelf instead. Not sure if the battery in it is still ok but the light itself looks to be in clean condition. Please note you will need a qualified electrician to install this for you. Kind Regards Eric