Look no further than the Rigid R+ Narrow Beam 62010 series lamp. I do not believe there is a brighter lamp in a PAR36 shell at this time for the money ($210 range). At 3,400 lumens each, I have 3 of them (wingtip lights and cowling) and have WIGWAG in the tips as an optional mode to boot, while the cowling is switched separately as a taxi light.
https://www.google.com/#q=rigid+62010
By comparison, these lamps are the same as having Qty:8 120-watt spotlights on the front of the plane. The beam focus, however, is absolutely PERFECT for aircraft, clearly limiting to the width of the runway and optimizing range. As for distance, I am based at an airport with a 7,400 foot runway and again, with NO lights on the field, I can clearly make out not only taxi markings and all runway paint, but every single reflective sign the entire length of the runway! With my old GE incandescent lamps, I could not even tell the signs had reflective properties!
With 20% of my flying at night, IFR approach practices at night and many day takeoffs followed by night landings, I absolutely LOVE these lamps. I tried other 1,000 lumen range lamps and was not impressed. With 10,000 lumens "under the hood," I clearly illuminate the first 500 feet of runway below me while still 200 feet up with the runway lights OFF. I can now land safely on runways with no lights at all.
Picture of my plane in the hangar attached. I'll see if I can have a passenger snap some photos soon of the approach at night. Better yet, I'll mount my HERO3 to the wing and shoot an HD movie for your enjoyment.
By the way, these lamps pull 40W which should tell you how they compare to others in terms of brightness. Also they have vents for additional cooling which are highly effectve at 150knots. The only drawback is that the power wires MUST be secured behind the lamps to avoid vibration. I ran a black tie-wrap throug the vent and around the wire assembly and unless you look real hard, you won't notice.