Bull ...
Picard said:
I agree with T0land that halogen light is the only suitable for night ride as compared to LED lights. The current LED lights on the market are made for hiking which the lights only reach 10ft ahead of the user path. For a bike ride, you need a light that reach 150ft ahead.
I think you're talking about keychain lights. I don't think you've seen the newer Luxeon Star models.
I have a Yukon HL headlamp (1W LED). Works for hiking and biking equally well. It will illuminate easily 100ft ahead and unlike a halogen that lasts 2-3 hours, it lasts for 20 hours on 3-AA alkaline batteries (using high setting).
Check out this review from Mountain Bike Texas:
https://www.mountainbiketexas.com/product.php?action=view&product=432A459D07660191B1gmWh2519B1
Princeton Tec is now making the Yukon HL in a bike configuration complete with headstrap and battery pack.
Why LED??? You can use multiple sets of cheap NiMH units to power the unit. You can keep a "spare set" of alkaline or lithium batteries that will power you out of trouble. Who wants to carry around an extra bottle battery (which are typically just NiMH D-Cells).
I think you will find that 3W (and ultimately 5W) LED systems will rapidly replace pretty much ALL portable incandescent (halogen, xenon, et al) applications within the next two years. At the same time, we will see the price of high power LED bulbs drop precipitously mirroring the rapid introduction of LED as "key-chain" lights.
The other driving force behind LED adoption is an offset to labor costs. That is, the cost of someone physically replacing a bulb. We are seeing wholesale replacement of incandescent bulbs for signalling devices like tail-lights and even LED array replacement for stop lights.
This light from Princeton Tec will soon kick EVERYBODY'S ASS!!!
https://www.modernmountainman.com/catalog.php?type=product&id=43887
Hopefully, they'll get the bike version out fairly quickly. I want one.
I expect HID (Metal Halide) to dominate the "high end" of the market for it's unrivalled light output and relative efficiency.
Look for endurance riders to rapidly switch to high output LEDs once the 3W crowd comes out. Why ???? WEIGHT!!!! The Metal Halide HID will ALWAYS be heavier because the high voltage (10,000+ V) requires a serious transformer. While more EFFICIENT than halogen, it still sucks just as much power (you just get more light). High Power LEDs will run through the night on a set of 3AAs. HIDs require a heavy (and VERY EXPENSIVE) lithium-ion setup to get 5 hours (not even a full night).
Halogen is on it's way out. LED will dominate MOST market segments that don't require a portable sun.