Inappropriate transformer for low-voltage lights. For pricing and availability. Buy Mawa Wittenberg 4 0 Recessed Ceiling Light Round Semi Flush Led Excl Transformer At Why halogen down light transformers are not working The main reason why a halogen down light is not working is because of the heat it is exposed to in the roof space. Ceiling light transformer problems . If the ceiling light has already worked before the lamp may be broken. Phone - 844-KICHLER 844-542-4537 Monday-Friday 800 AM to 600 PM ET. For pricing and availability. Wiring is the same for all. While simple they are inefficient compared to modern electronic replacements. If they are low voltage pins its a bit more complicated. The transformer will probably have been poked up into the ceiling through one of the holes. LED lights sometimes flicker. In this case you can replace the bulb with a new LED bulb with a suitable socket. The following causes can be responsible for the occasional fl...