[3000 Lumens of Brightness & 6 Dimmable Modes] ROCKBROS bike lights feature two 30-watt LED bulbs and two modes: low beam and high beam. When both low and high beams are on simultaneously, they deliver an ultra-high brightness of 3000 lumens. 1. Low beam: 4 constant modes (A: 1500 lumens, B: 800 lumens, C: 400 lumens, D: 200 lumens) + flashing mode (200 lumens). 2. High beam: 2 constant modes (E: 800 lumens, F: 1500 lumens). Switch between modes with each click of the switch. The light also has a memory function, so it will resume from the last recorded mode upon restart (low beam only). *Note for first-time use: Press and hold the low and high beam switches simultaneously for about 5 seconds to unlock (the light will go from flashing red to green).
[10,000mAh Large Capacity] This road bike light has a built-in 10,000mAh large capacity, and after a single full charge, it can be used continuously for 2.3 to 30 hours depending on the lighting pattern.
[Temperature control + low voltage protection] The light is equipped with a temperature measurement element, so if the internal temperature exceeds 70°C, the mode will automatically downshift. If the temperature exceeds 100°C or if the voltage is low, the light will shut down. When the remaining battery level is below 15%, only 400LM mode and 200LM mode will be used.
[Design Details] 1. Aluminum Alloy: Made of aluminum alloy for impact resistance, excellent abrasion resistance, and corrosion resistance. 2. Anti-Glare: Beam distance approximately 200m, beam angle approximately 90°, and anti-glare lens. It cuts the light distribution upward, preventing oncoming traffic from being dazzled while riding, improving safety for cyclists. 3. Type-C Rechargeable: Fully charged in just 5.5 hours (battery level indicator included). 4. IPX6 Waterproof: This bicycle headlamp can be used in bad weather, allowing you to ride without panicking even in sudden rain. *Note: Do not use for long periods in downpours or underwater. 5. Easy Installation: Simply align the light with the handlebar mount, insert, and rotate to securely attach.
[Package Contents & Quality Guarantee] Bicycle headlight, handlebar mount, Type-C cable, 6mm rubber ring, anti-slip band, 3mm hex wrench. *Instructions are not included in Japanese (English and Chinese only). If you have any questions or concerns about the product, please click on the seller on the product page and contact us using the "Ask a Question" button. We will respond promptly.