Knog Boomer USB Rear LED Light
|Price:||£31.23 FREE UK delivery.|
- Water Resistant Waterproof Flexible Body
- Integrated Lens and Housing
- 2-year warranty
- Rechargeable Lithium-Ion polymer battery
- Plugs into any USB port or charger
- Recharge time 2-4 hours
- Fits onto seatpost
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Visible up to 600 metres, this super-bright high powered LED has an output of 5 lumens and a burn time of 3.5 hrs (steady), or up to 23 hrs (flashing). It has 4 modes: constant, strobe flash, fast flash, and random strobe. The water-proof flexible silicone body is super slim, has an integrated clipping feature and features quick release mounting. There is also a low battery indicator.
The battery discharge feature has been integrated into the electronics to optimise battery longevity. This feature should be activated when the light will not be used for an extended period (i.e. more than a month). To activate mode simply hold down power button for 5 seconds after a full charge cycle. The LED will be active until the battery reaches the correct discharge level to which the LED will turn off and the unit will be safe for storage.
To preserve the condition of the Lithium battery, when the Boomer isn't used for an extended period, the batteries should rest at 50% charge. To achieve this, simply charge the Boomer to 100%, hold down the button for 5 seconds. This will turn the light on and automatically shut the Boomer off when the battery reaches 50% charge.
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However, the light seems to be less secure because the silicon outer case looks like it may easily to come off. The front Knog Boomer light appears to be more secure than the back one. I have found a solution in that I have tied a thin ribbon on the silicon casing to tie it to the seat post to prevent the light from coming away from the bicycle frame and it looks quite secure!
Useful for going to work because you can charge them there
Charge holds well, at least when used on blink
Slick idea and concept
Rear has fussy fitting of band due to hook used
Won't fit larger posts/bars without stressing the pull round silicon band
Really aNnoying lack of straight off/on option.
Would I by them again, I would have to think seriously about it. Nt sure whether the price to value box is tickable on these. Maybe time will tell. Especially if the silicon cases hold up to the weather and constant use. I have my doubts at this stage, but don't wish to be too harsh about them.
The back light toggles though 6 flash patterns (needlessly) so you spend half your life turning it off.
Every minute if use requires ten minutes of charge on the PC.
I lost the back one as it fell off.
Having said that, I still used them. albeit with mixed emotions.
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Most recent customer reviews
Recharging is a doodle as I charge whilst i'm asleep.
Ended up buying that Knog one, even though it is expensive (£25 for one bike...Read more