Magicshine SEEMEE 400

The reviewer discusses the Magicshine SEEMEE 400 rear light, noting its 400-lumen output is very high and likely unnecessary for a rear light. He has run it on the lowest non-blinking mode for a very long time across every test and found it held up extremely well, with runtime close to the stated 19 hours (around 20 hours possible). He highlights the Opti Tracing feature, where a small downward-facing light pulses and illuminates the rider's legs red, giving the bike dynamism on the road and letting the rider glance down to confirm the light is still on. He considers this his most-used mode and fully sufficient, questioning whether 400 lumens is needed since it can dazzle others, though it may suit fog or riders who dislike their companions. He also mentions the Magicshine app for iOS and Android, which connects to the lights and shows battery status and temperature, allows configuring modes, enabling/disabling motion activation and sleep mode, custom light levels, and performing firmware updates.

The reviewer discusses the Magicshine SEEMEE 400, a smart bike tail light with 400 lumens output, ANT+ and BLE connectivity, and a downward-facing LED. They highlight its design, features, and performance, noting it is an improved version of the CI 300 with added connectivity options.

The reviewer finds the Magicshine Seemee 400 ANT+ to be an excellent basic rear light with a very bright output, simple one-button operation, and a clever downward-facing lamp that illuminates the tyre, frame, pedals, and road. However, the reviewer is critical of the light's advanced features, noting that actual battery run-times fall far short of the claimed figures and that the brake light and connectivity functions feel gimmicky and unreliable. Overall, it earns a 7/10 verdict as a great little light provided buyers don't expect it to fulfil its more grandiose claims.