Attach the Cyclops Ultra Mini LED Cap Light to your headwear, and you`ll be ready for adventure. The single on/off button offers simple operation, while the IPX4 water-resistant construction can endure wet conditions. Four LEDs provide bright illumination you can take on the go, and the top-mounting design offers easy placement.Product Features4 LEDs provide bright illumination you can clip onto your hatProvides light for up to 279 minutesTop-mounting design offers easy attachmentIPX4 water-resistant construction can endure wet conditionsSingle on/off button offers simple operationRequires 2 CR-2032 lithium batteries