I predict it will be particularly popular with time triallists now that rear lights in CTT time trials are compulsory as of 1st January 2020. With its genuine 270-degree visibility, compatibility with aero seatposts, powerful output (especially impressive is the retina-searing day flash), extendable run-times, aerodynamic shape and low weight there aren't many lights that can shade the Moon Cerberus at this price point. The Knog Cobber Mid does supply coverage at the sides with its curved design and goes up to 170 lumens but costs £59.99, and with its gap between light and seatpost will not be as aerodynamic. The Lezyne Strip Drive 150 costs the same and has the same lumen count, but lacks the side visibility feature and the bladed seatpost compatibility.
Valueįor what it is and what it does, the Moon Cerberus is very good value. Moon says USB-C is the new generation and is more convenient with better charging performance, but at the moment it's not very convenient to have to use a specific cable – even though charging is quick at two hours. It's a shame it's removable, though, because in a house with children, any interesting-looking thing like that tends to disappear never to be seen again.Ĭharging is with a USB-C cable, which is not the same as the micro USB that most devices use.
The rubber pad that sits against the seatpost conceals and waterproofs the USB port and does a good job: the force of the rubber band squeezing it to the seatpost ensures it's always tightly plugging the USB port. You choose from three supplied rubber bands in the box to get the right fit, but any rubber band will do, such as the ones that come with Garmin stem mounts. The clamp has a clever system whereby two hinged wings and a flexible rubber pad make it fit both round-section and the sharpest bladed seatposts.
The VLS button sits right next to the on/off so ideally you need to be looking at them, meaning you perform any lumen-fettling while stationary.Īnd unlike most lights, the Cerberus is not just designed for a round-profile seatpost. The buttons are more like pressure pads, flush with the casing, and are not easily operated with gloves on. VLS can also be applied to the flashing modes. The constant modes are a claimed 3:30 and 1:45 but these can be stretched to 18 hours using the VLS button (variable lumen system), which is basically a dimmer switch to preserve battery life or spare your riding mates' eyes. > Buyer's Guide: 17 of the best rear lights for cycling There are two constants and three flashing, including a retina-searing day flash, my favourite. Unlike other manufacturers, Moon has sensibly kept the mode count to five, sparing the endless scrolling that some require.
#Cerberus pro review drivers#
For those heart-in-mouth moments when you're passing a junction that's full of dozy drivers ready to SMIDSY you, it's game changing. Instead of a curved lens or cutout that is supposed to spread the light from rear-facing LEDs sideways, the Cerberus has three separate LED strips with two of them dedicated to sideways light. Side visibility is an afterthought for most light manufacturers, but the Moon Cerberus supplies genuine 270-degree coverage and is as bright from the left or right as it is from the rear.
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