A versatile, feature-rich, rechargeable headlight, the NiteRider Lumina Max 1500 features NiteLink™ wireless technology, enabling you to remotely control a compatible taillight (not included). Lock Mode, perfect for use during storage and transporting the light. Press and hold power button for 8-10 seconds to lock out operation of light. Features: 500 Lumens on High Mode MAX Lumen Output: 1500 on Boost Mode. MAX power requires MAX energy, use only when you need it most 8 Modes with Run Times: 0:45 – 21:00hrs Choose from 5 solid brightness levels and 3 multiple flash patterns Charge Time: 3:00hrs Weight: 216g Battery: Li-Ion 8 Step Fuel Gauge Water / Dust Resistant IP64 Rated. Lock Mode, perfect for use during storage and transporting the light. Press and hold power button for 8-10 seconds to lock out operation of light. Pairs with NiteRider® NiteLink™ BLE Short Range Wireless devices Run Times: Low - 13:30h at 100 Lumens Med - 7:30h at 200 Lumens High - 2:45h at 500 Lumens Boost - Up to 0:45min at 1500 Lumens Walk Mode - 21:00h at 50 Lumens Super Flash - 14:00h Pulse Flash - 15:45h Fast Flash - 12:00h