One of the best rear lights money can buy, though it comes at the cost of only just over 60 hours of run-time.
The power button turns the light on in legal ﬂashing mode, with a further single touch to cycle through constant then two further ﬂashing modes.
You press and hold to turn off so no accidental blackouts. Cateye’s excellent Flex-Tight mount is a breeze to install and will ﬁt both seatstays and seatposts of any diameter.
Powered by two AAA batteries housed inside a well sealed and well made unit, its light comes from five LEDs each with their own lens 'nest'.
We managed just under the claimed 30 hours of constant light with 29 hours and a few minutes, but longer than the claimed flashing time of 60 hours with just over 61 hours.