Two sets of Petari Tekion No. 3 (13w). I was using these until recently, and I just confirmed they work with electricity. However, they are old, used items, so I don't know when they might stop working! Please use used electrical equipment at your own risk. If you are concerned or hesitant about using used electrical equipment, I recommend refraining from doing so and purchasing new ones. I don't remember how many years or how long I used them. Petari Tekion Heating equipment Panel heater Reptile supplies Amphibian supplies Midori Shokai Rep Japan Shipping will be via Rakuraku Mercari delivery, wrapped in air cushioning (bubble wrap). (Image of the 6th item packed)