its find on ebay other then the light bars that trailworthyfab.com is selling. the hanma ones are sold under different names and at different prices but the specs are always copy pasted. some of them have glass lenses so those would be best up high
this:
http://www.ebay.com/itm/18W-Car-Boat...#ht_2522wt_830
is almost certainly this:
http://www.hanma-auto.com/products/d...work-light-18w