local function Check(v)
    if v:IsA'Part' then
        v.Material = Enum.Material.Plastic;
    elseif v.ClassName:match'Light' then
        v:Destroy'';
    elseif v.ClassName:match'Effect' then
        pcall(function()
            v.Enabled = false;
        end);
    end;
end;

local Lighting = game:GetService'Lighting';
for i, v in next, Lighting:GetChildren'' do
    Check(v);
end;

Lighting.DescendantAdded:Connect(Check);

for i, v in next, workspace:GetDescendants() do
    Check(v);
end;

workspace.DescendantAdded:Connect(Check);