anker rechargeable lc40s for 20 bucks and free pipe clamps i found in the basement , the ones with the screw to secure thing , use rubber guards if you dont want to scratch your bars up .
secure one pipe clamp around the bar and slide the one to hold the flashlight under it adjust the angle , and tighten , but not too much,
80 bucks gets you 1600 lumens if you over and under double mount them on both sides of the bars , and you can use 400 to 800 lumens at a time , they are water proof and recharge , the only draw back is they cant recharge and be in use , thats the biggest bummer for really long rides .
i cant see a point in a 120 dollar bike light that isnt doing anything special .