Together with bicycle handlebar gloves, I tested it in -20°C, it was very good. On bicycle I powered it from two parallel 18650 Panasonic elements. It was little small for may bicycle handlebar, bu fixed by kapton tape. If powering from 5V 2.8A and 13W

Together with bicycle handlebar gloves, I tested it in -20°C, it was very good. On bicycle I powered it from two parallel 18650 Panasonic elements. It was little small for may bicycle handlebar, bu fixed by kapton tape. If powering from 5V 2.8A and 13W

Together with bicycle handlebar gloves, I tested it in -20°C, it was very good. On bicycle I powered it from two parallel 18650 Panasonic elements. It was little small for may bicycle handlebar, bu fixed by kapton tape. If powering from 5V 2.8A and 13W

Works well, good quality and usage for its price. Shipping was also good.

Works well, good quality and usage for its price. Shipping was also good.

Works well, good quality and usage for its price. Shipping was also good.