Designed to provide complete situational awareness on busy Australian roads, the Magicshine SeeMee R300 detects up to 8 approaching vehicles simultaneously from behind. It syncs via ANT+ or Bluetooth to leading cycling computers like Garmin, Wahoo, and Hammerhead, delivering real-time visual and audible warnings directly to your head unit so you never get caught off guard.
As traffic approaches within 70 metres, the SeeMee R300 automatically ramps its brightness up to 300 lumens to alert approaching drivers while maintaining wide 270-degree side-to-rear visibility. It features independent controls for the radar and light functions, a long-lasting battery that delivers up to 100 hours of runtime in Eco Flash mode, and an IPX6 waterproof construction to handle unpredictable wet-weather rides.
140m Radar Detection: Tracks up to 8 vehicles approaching from behind at speeds between 5 to 100 km/h, sending instant alerts to your bike computer or phone.
300-Lumen Reactive Output: Automatically increases flash brightness when trailing traffic reaches a 70-metre threshold to maximize driver awareness.
PelotonSync & Auto Wake: Features smart motion sensing that powers off after 5 minutes of inactivity and harmonises flash patterns with nearby compatible lights.
Max Output: 300 Lumens
Max Runtime: Up to 100 Hours (Eco Flash) / 26 Hours (Radar Only)
Weight: 109g
Battery: 3.6V 3350mAh rechargeable Li-ion via USB-C
Waterproof Rating: IPX6
Connectivity: ANT+ and Bluetooth
✅ Solo Road & Commuter Cyclists: Offers proactive safety and peace of mind by giving you early warnings of approaching traffic on high-speed roads.
✅ All-Day Endurance Riders: Massive 3350mAh battery provides up to 100 hours of light runtime and rapid 2.15-hour USB-C recharging.
✅ Clean Cockpit Integration: Pairs effortlessly via ANT+ to display traffic distance directly on your existing Garmin, Wahoo, or Hammerhead head unit.
❌ High-Speed Traffic Areas: The radar limits tracking up to relative speeds of 100 km/h; vehicles overtaking at extreme speed differentials may reduce alert windows.
❌ Minimalist Seatpost Setups: At 109g, it is heavier and larger than standard non-radar rear safety lights.
❌ Brake Sensor Seekers: Does not feature dedicated deceleration kinetic brake sensing like some traditional tail lights in the SeeMee lineup.
To maximize battery life on long daytime training rides, use the dual-button control to set the light to "Radar Only" mode or "Eco Flash". This keeps the radar actively sending traffic alerts to your bike computer for over 24 hours straight while preserving maximum brightness for when cars actually approach!
