From another thread Jeremy commented on how much electricity his contractors used whilst using halogen work lights and how much heat they generated ( waste heat), I have found that with halogen if they are moved a lot the filament brakes easily so I want to replace mine with LED replacements and came across these , comments!,
https://www.bltdirect.com/prolite-led-r7s-6w-78mm-warm-white-80-watt-alternative
Sure, although I have two types now, the ones around the side of the house were the originals, put up quickly because there was no easy way of getting mains power to that wall (the problem being that I hadn't thought to run a cable up outside, and being a passive house it's not at all easy to run a new cable through an external wall).
The ones around the side are two 10W 12V COB LED floodlights, like these: http://www.ebay.co.uk/itm/10W-LED-Flood-Lamp-Outdoor-Security-Light-IP65-Land