The Moon Misar/Alcor Light Set provide the perfect option for additional visibility; these compact rechargeable lights are perfect for year round use. Moon Misar/Alcor Light Set Features Front: 1 x 3030 LED 100 lumens output Day flash mode Magnetic bracket Mode memory 270 degree total beam angle 250 mAh Li-PO integrated battery SIze:31 x 54 x 18mm Weight:19g Rear: 1 x red 5050 LED 15 lumen output 270 degree total beam angle Day flash mode Mode memory Magentic bracket 250 mAh Li-PO integrated battery Size: 31 x 64 x 18mm Weight: 17g