Attached to your handlebars or other compatible mounts, the RN3500 houses 5 LEDs that shoot a beam up to 3500 lumens out to 350 meters. A single switch on top of the head controls the power, which is a detachable battery pack which will also power your other devices on the go.

Features:

• Versatile & Lightweight: Maximum output of 3,500 lumens in a compact body that weighs only 110g
• More Than a Bike Light: Portable 7.2V 5200mAh battery pack supports micro USB charging & discharging capacity for emergency use
• Resistant to Weathers: The hard-anodized aluminum body is IPX5 waterproof, passed temperature (-20°C~40°C) tests, equipped with built-in temperature control system and cooling fin
• Flexible Mounting Choices: Garmin type mount supports both handlebar and helmet attachments, compatible with Go Pro, bicycle computer and phone

Specifications:

• Output modes:
• Bottom LEDs only:
• Eco: 100 lumens/75hr
• Low: 300 lumens/20hr
• Mid: 700 lumens/8hr
• High: 1400 lumens/4hr 30min
• Flash: 15hr 30min
• Top LEDs only:
• Eco: 200 lumens/19hr 48min
• Low: 600 lumens/8hr 30min
• Mid: 1000 lumens/4hr 30min
• High: 1800 lumens/2hr 30min
• Flash: 9hr 30min
• All LEDs: 
• Eco: 350 lumens/17hr
• Low: 900 lumens/6hr 30min
• Mid: 1800 lumens/3hr 12min
• High: 3500 lumens/1hr 42min
• Flash: 0-1800 lumens/6hr 30min
• Beam Distance: 1,148ft (350m)
• Charging Type: Micro-USB Charging
• Compatible Batteries: 7.2V 5200mAh Li-ion Battery Pack (Included)
• Light Source: Luminus SST-20 x5
• Lens/Reflector Type: High-efficiency Optical Lens
• Mode Operation: Large Switch Button
• Form/Size Factor: Small Size
• Waterproof: IPX5
• Weight: 3.88oz (110g)(NOT Including Battery); 11.15oz (316g)(Including Battery)
• Length: 2.36in. (60mm)
• Width: 1.71in. (43.5mm)
• Height: 1.63in. (41.5mm)