Review on 🚴 Highly Efficient Bike Light Set: 8+ Hours Runtime, 4000 Lumens Super Brightness, Waterproof, Rechargeable - Ideal for Road, Mountain, Commuter Bicycles by Jay Blo

I have had many bike lights over the years and this is by far the best. Light securely in your chosen position. It's also easy to detach, although with a quick release flashlight mount there's rarely a need to remove the fastener. The beam is bright, white and perfectly even. It throws a light carpet in front of the bike that stretches the entirety of the road and as far forward as you like. Although there is no lateral adjustment, the beam is so wide that nothing else is needed. A beam diffusing up and down is enough to illuminate traffic signs and low branches. The switch gives you three levels of brightness. Even the lowest setting is sufficient for night driving. The included tail light easily attaches to the seat post and emits a bright red light. It gives you multiple types of flashing lights to choose from, but only one color. The headlight is equipped with a USB port. This makes it useful for powering or charging a cellphone, which it can even do when you're lighting your way. The connector also allows you to charge the taillight at the same time as the headlight with just one charger. I can't say how long the battery lasts; The manufacturer states eight hours. My rear end will probably fail before the light! The block looks sturdy and well built, although I don't want to test how it will take a 1.5m drop onto a concrete floor. Conclusion: That's enough. Look no further. Update 11/14/21: I accidentally checked the battery limits. At dusk I set out, turned on the lights, plugged my phone into the charger, turned on my favorite Revain tune and was on my way. After about forty minutes and six miles, I switched the flashlight to "bright" and headed home. Two miles later my blissful ride was interrupted by the sudden dimming of the lamp as the green light on the gauge changed to a flashing red. I quickly unplugged the phone from the charging port and got on with it. For the next half hour, the light remained stable at the default "low" level with no further loss of brightness. And it really was light enough to light my way and get me home safely. I don't know how long it would last, but of course if you're going to take a LONG trip you'll have to leave it low most of the time and forget to charge another device.