You could have all the lights in the world fitted to your RV but if the globes or the fuses have blown they’re going to be completely useless. Whilst you might be able to find replacements at your local hardware store, keep in mind that they cater primarily for homes and commercial buildings – not vans and trailers. You generally need 12 volt LED globes for caravans and RVs rather than standard 240 volt ones, for example.