[AMPP800]:The AMPP800's compact and durable alloy body features a three level battery indicator that means there is always time to get home.- High power rechargeable headlight (800 lm)- Powerful wide beam with OptiCube™ lens technology- Excellent side visibility- Large capacity lithium-ion rechargeable battery- Built-in fast recharging circuit *Full charge in approx 3 hours (minimum)- 3-level battery indicator (Blue: Above 50% Yellow: 30-50% Red: Less than 30%)- USB rechargeable (Micro-USB cable included)- Mode memory function- Five light modes (High / Middle / Low / Daytime HyperConstant / Flashing)- Turns on High mode with double-click of power button- FlexTight™ bracket- Helmet mount and center fork bracket (optional)Specifications:[AMPP800]:- Dimension: 32 x 102 x 33 mm - Weight: 136g (light unit and battery) - Light source: High intensity white LED X1 Run time:- High mode 800 lumens: 1.5hrs- Middle mode 400 lumens: 2hrs- Low mode 200 lumens: 4hrs- Daytime Hyper Constant mode 800/200 lumens: 5hrs- Flashing mode 200 lumens: 30hrsChange:- Battery: Li-ion rechargeable battery (3.7V-2500mAh) - Recharge time: 3-7 hrs (USB2.0 recharge) - Mount size: φ22.0-35.0mm - Water resistant: IPX4 - Other: Three-color battery indicator, Lighting mode memory function, Helmet mount / Center fork bracket (optional)[ViZ300]:Pumping out an attention-grabbing 300 lumens with OptiCube™ lens technology, the versatile ViZ300 stands out with the power of Daytime Hyperflash™ mode and the friendliness of Group Ride mode.- 3 LEDs (300 lm)- Highly visible during daytime- 300 degree visibility- Long rear beam projection- OptiCube™ lens technology- Lithium-ion rechargeable battery- USB rechargeable- Low battery indicator- 4 modes *Charging time: 3h- Mode memory function- Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.)- New seat post bracket SP-15 which fits contemporary (kammtail) aero seatpost- Snap System™Specifications:[ViZ300]:- Dimension: 75.5 x 25 x 34mm- Weight: 47g (with batteries)- Light source: Red LED x3Run time:- Constant (30 lumens): 5 hrs- Flashing (30 lumens): 45 hrs- Group Ride (100 lumens 15 lumens): 8 hrs→10 hrs- Daytime Hyperflash (300 lumens): 10 hrsChange:- Battery: Li-ion rechargeable battery- Recharge time: 3 hrs (0.5A)- Mount size: φ21.5-32.0mm. Fits up to 130mm outer circumference. (SP-15)- Water resistant: IPX4- Other: Battery auto save, Low battery indicator, Light mode memory