Viessmann 3500 : Spare bulb blue, Ø 2,3 mm, 12 V, 50 mA, 2 cables, 2 pieces €6.90 Add to cart In Stock
Viessmann 3507 : Spare bulb yellow, Ø 1,8 mm, 16 V, 30 mA, 2 cables, 2 pieces €6.90 Add to cart In Stock