LR500S Front 

• Specifically designed curved lens with even-distributed flood beam and side visibility, great for road cycling and commuting
• Extending battery runtime by connecting with external power source
• Multiple brightness levels and daytime visible rapid flashing for night and daytime riding
• Wired remote button(sold separately) to change brightness levels safely without releasing the grip
• Built-in battery indicator and charging indicator
• Thermal protection circuit and durable anodized aluminum body with better heat dissipation performance
• Quick release for easily slide in/out; compatible with aero handlebar and round handlebar with 22.2mm to 35mm diameter

TR20 Rear

• High efficient COB led with max 20 lumens
• Quick release designed for various situations
• Specifically designed lens providing front and side visibility
• Auto power save and indicator for low battery
• Built-in Mode memory function
• Convenient Micro USB charging port
• Weight: 20g of whole unit and with max 20 lumens COB LED