C++ Node template typename T

//Node.cpp

#include <iostream>

using namespace std;

template<typename T>
class Node
{
public:
    T Val;
    Node<T> *Next;
    Node(T value):Val(value){}; 
};

//h2.cpp
#include <iostream>
#include <iterator>
#include <ctime>
#include <random>
#include <vector> 
#include "List.h"
#include "Node.cpp"

template<typename T>
void  printNode(Node<T> *node)
{
    while(node!=nullptr)
    {
        cout<<node->Val<<"->";
        node=node->Next;
    }
    cout<<"NULL"<<endl;
}
void nodeT9();

int main()
{
    nodeT9();
    return 0;
}

void nodeT9()
{
    Node<float> *node1=new Node<float>(3.14);
    Node<float> *node2=new Node<float>(6.28);
    Node<float> *node3=new Node<float>(9.42);
    node1->Next=node2;
    node2->Next=node3;
    printNode(node1);
    cout<<"Finished in node9()"<<endl;
}

g++ -g -std=c++2a -I. h2.cpp Node.cpp -o h1