The sb super bright aktiv is at the peak of the exposure lights road range featuring a road specific beam pattern and elevated to 1700 measured lumens. When aktiv is selected the light will sense oncoming light sources and auto dim when a vehicle is approaching no button or thinking required. Specific cut outs to allow side illumination to ensure the rider is visible through 240deg. The reversible graphics are a reminder that the strada can be mounted either way up without a change to beam pattern or technology. There is also a remote switch included which allows the rider to take control if desired. In the box strada mk12 sb aktiv qr handlebar bracket wired remote switch fast charger usb charge cable qs guide. Black specification srp 375 output 1700 lumens weight 257 grams burntime min 2 hrs max 36 hrs battery capacity 10200 mah li ion dimensions mm length 107 head 58 back ndash 44 led's 2xxpl2w3 hours runtime 2 36 hours lumens measured output 1700 grams weight 257g leds 2 x white xpl2w3 ip rating ip65 max lumens 1700 battery 10200 mah li ion runtime 2 36 hours charging time 6 hours weight 257g material anodised 6063 aluminium length 107mm head diameter 58mm in the box strada mk12 sb aktiv qr handlebar bracket wired remote switch fast charger usb charge cable qs guide 3 year warranty on all of our lights and the leds inside are covered by a lifetime guarantee! Ensuring peace of mind with every purchase. Our lights are designed to last a lifetime so we carry out servicing and repairs on lights well beyond the warranty period