Lezyne Zecto^2 Drive Max 400+ Tail Light Description: The Lezyne Zecto^2 Drive Max Tail Light is a high-visibility light that boasts an incredible 400 lumens of brightness. With six different modes ranging from Daytime Flash to 100 hours of runtime on Femto, there is a setting to match the visibility needed. Attaches to a seat post or frame with a universally compatible gasket attachment, but also the ability to mount to existing quarter-turn computer/camera mounts. Built to withstand any type of weather condition, thanks to the extensive testing to meet the IPX7 Waterproofing standards. USB-C charging makes it easy to keep at full charge, so it's always ready to go. Note: Charging cable not included Features: High-visibility light that boasts an incredible 400 lumens of brightness Six combined solid and flash output modes offer versatile options for any situation Daytime Flash mode ensures maximum visibility during daylight hours Revised mounting bracket offers universal mounting and compatibility to existing quarter-turn mounts IPX7 Waterproofing standards will withstand even the harshest weather conditions 1300 mAh battery capacity Offers a maximum runtime of up to 100 hours in Femto mode Run Time: 4.5 Hours (Blast, 80 Lumens) 90 Hours (Flash 150 Lumens) 12 Hours (Pulse, 80 Lumens) 20 Hours (Economy, 15 Lumens) 36 Hours (Day Flash, 400 Lumens) 100 Hours (Femto, 5 Lumens) Specifications: Brightness: 400 Lumens Battery Type: Rechargeable (USB-C) Run Time: 4:30 - 100 Hours Beam Color: Red Color: Black Dimensions: 1.8 x 1.3 x 1.8" Weight: 59.8g