The description states 'bike lamp', but this lamp is not really suitable for (most) bikes. I have replaced a halogen lamp with this LED (600 lumen). First, I had to adapt the housing of the lamp with a rasp, due to the large size of this LED (size indicated in their description). Than, the result is a scattered light, not a bundled light. To see the streets in front of you, this is not enough. I see more with my original halogen. Of course the housing of your old lamp will have an influence. After contacting the seller, they said it's due to the fact that some leds are on the side of the lamp, not in the front. Only than they can achieve 600 lumen. I recently also bought a Onature led lamp, and this gives a very strong bundled light. I recommend this type of lamp, if you need a lot of light for dark roads.
1980's model 3-cell Maglite. I had to file the interior of the flashlight's threaded-sleeve about 0.25mm before the led cylinder would fit where the glass bulb used to be. The LED's retaining flange was perfect size. Once installed, the flashlight with LED was 3-times brighter than the flashlight with the original glass bulb. With LED, the flashlight produced about 1200 lux at 1 foot distance, 600 lux at 4 feet and 400 lux at 6 feet, all consistent with the 600 lumen rating (measurements using R&D brand MT-30 lux meter, AliExpress item 4000031752838).