As is the case with any oven, the temperature at which you should bake any cake depends on the specific cake recipe.  Generally speaking, however, most cakes are cooked between 170°  and 180° C.  As you may know, the temperature at which certain things are cooked and baked will vary between the different types of ovens. As their heating mechanisms are different, so too are their effects on the food within.  For example, an electric oven tends to cook food faster than a gas oven. This is due to the fact that electric ovens are generally better insulated and distribute the heat around the oven, far better than gas ovens do. Although gas ovens are very powerful, they lose heat relatively quickly and easily and are not the best at circulating the heat around the oven cavity!  That is why fan assisted ovens are even better! Thanks to the fan, the heat is circulated evenly around the oven, making the food heat faster and more efficiently.  These factors have to be taken into account when it comes to deciding on the temperatures of the oven for the food inside. You will not simply be able to choose the temperature based on your existing recipe or based on the general temperatures that are used for cakes in gas ovens.  Thankfully, there are so many cookbooks and online recipes that are easy to access and often free that now detail the temperatures required for specific recipes in specific ovens.  However, if you are working from a family recipe that has not yet been tried or written down in gas oven temperatures, then you will have to rely on your gut instinct, and possibly a fair few tries and fails!