Battery operated PIR type light ? I have a couple of 'expensive' LED's at my caravan that are very bright, but a cheap £9.99 LED PIR light at the back of my garage - it's OK for finding your way, but you won't be working under the light - runs on AA's. The 'expensive' ones are far brighter (£30-£40 each), but run on C cells, and are much more useable.
Mr Beams on Amazon seem to be well reviewed.