f、 All fluorescent fittings must be in complete set within metal casing and to have at least 8mm air space(for air circulation)from all backing.Electronic ballasts are preferred in all light fittings.If conventional type are used,choke and transformers for lightings are not allowed to be in direct contact with combustible surface e.g,wood,plywood,PVC.Spacers such as fire rated material or fiber to be used,Preferred brands for conventional ballasts are Phillips and GEC.
