Stanley hid pros:high luman output and far throw.
stanley hid cons:its heavy, has an sla battery, 8000k bulb, takes a long time to charge, may not hold a charge when you by it. (my stanley hid lasted about 6 months and died.)
stanley Fatmax pros: high luman for a led light. far throw for an led light, warmer color light ,lithium lon batteries, 6 hour charge time. two output modes, smaller and lighter then stanley hid, cheeper then stanley hid
Stanley Fatmax cons: little top heavy but not to bad, less output and throw the stanley hid,
This is just my opinion on the two and why i think the Fatmax is a better deal. btw i tryed out the stanley hid compact and a full charge lasted no more then 7 minutes. the charging indicator would turn green in 40 minutes when it really was not fully charged yet. thee throw was barly more then my fatmax and deree asphreic so i returned it and kept the fatmax. maybe i just like led's better.