The MZ charge distributors offer enhanced efficiently battery charging from the alternator thanks to a very low voltage drop. Each power diode is connect to a three colour LED which allows functions to be actively controlled according to the following criteria: Green LED = operation OK. Red LED = diode short circuit. Yellow LED = diode interrupted. Available in five models to cater for all requirements, they feature excellent lightweight anodised alloy dissipaters for efficient heat dispersion, even at maximum current.