I'll see if I can do a comparison tomorrow.
The beam is spread out over 120 degrees, which is perfectly adequate.
jesus, I'm not sure, but the latest Jaguar XF's use LEDs IIRC. I know for certain that all our region's ambulances at the moment use LEDs for reversing too.
Certainly anyone who's been behind me when I've been reversing have had no problems seeing them, I think what isn't coming out well in the pictures is that although these are pinpoints of light (instead of a spread out dim glow which gets glared out as soon as strong sunlight hits the reflector), they are very bright pinpoints of light and you absolutely will notice them. If anyone had expressed any form of concern about the visibility of the lights during the day, they'd have come out before now.
I can hardly see the lights in the daytime pics either , especially the 2nd one . Like Dink and Jesus said , you need a multi-directional led because the reflector and lens are designed to work with a filament lamp which is multi-directional . You'd be better off with something like this led lamp :
http://www.ebay.co.uk/itm/160843231801?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
The light output from those kinds of lights is so poor I wouldn't even bother touching them. CREE chips are far, far more powerful.