Exposure Link Plus MK4 F&R Combo Light A front and rear combination helmet light that now has been upgraded output to 450 lumens front and 50 lumens rear has the options of being either front, rear, or both. The Link+ sits high above the traffic with 360-degree visibility and the power to be seen over a kilometre away. Prominent illumination whether commuting, training or just riding, day or night. Day Bright Technology - Bespoke pulse pattern designed for daylight use which is more conspicuous than a regular pulse and visible over a kilometre away, even in the brightest conditions. DayBright mode will you noticed. Be Seen be Safe