If you purchase individual WhitePython LED light strips, you will need to purchase an LED Power Cable which fits in between your Power Supply and Light Strip. Available in 2 lengths, the 30cm Power Cable comes as standard in all LED light kits. However, the 1m Power cable is ideal for those who need a further reach. Also, combined with the Aux to Female Extension cable, this can create a long extension in-between 2 light strips (perhaps reaching across 2 terrariums)