Fully dimmable with resistive & inductive dimmers. 1.0kV SURGE PROTECTION – EN 61547. Pre-wired with 20cm primary lead. 20cm heat resistant secondary leads. Safety compliance – EN 61347. EMC compliance – EN 55015, EN 61000, EN 61547. 2 Year guarantee. NOTE: Maximum cable length from transformer to the furthest lamp is 2m.