My friend is diabetic and has very poor vision at night. I bought him a scorpion like mine about a yea ago and he loves being able to light up stairs and such when out at night...unfotunately, batteries are expensive along with short run time when used alot...would he be better served with an LED for lighting directly in front of him? Also, would an LED like the x5 light up a street sign from his car? He also uses it for that...thanks in advance guys...