The GKEEMARS 10Pcs T Tap Wire Connectors are the best solution for all your splice connections. While these quick splice connectors are a good fit for LED ceiling lights or downlights with wires of 0.5-1.5Mm², it could be tricky to use them with thicker wires. It's an excellent product if used right, but the ease of use could be improved. The 2 Way 4 Pin - A connector is perfect for making connections through tight spaces, but one has to be careful with the extra parts that come along with it. OSee full review