Check the listing for details. ECE R65 COMPACT LOW PROFILE LED FLASHING AMBER ORANGE BEACON 12/24v 3 BOLT MOUNT. Condition: New. Listed at 37.96 USD. EMC Approved (ECE R10 & R65). 3x Bolt mounting (M5 bolts supplied). 4 Selectable flash patterns. Multiple units can be synchronized to flash together. Distance between mounting holes: 90mm (centre of hole to centre of hole).