On 2/8/2018 12:08 PM, Joerg wrote:

Ye olde 2.4W + 0.6W with a dynamo? When riding at a good clip, meaning
north of 15mph, those never lasted much longer than a month for me. Even
if they didn't blow their filament right away the bulbs turned black
inside and became dimmer than they were already to begin with. When I
was a teenager I started equipping my bikes with what the automotive
industry already understood over 100 years ago, brighter lights, a
battery and charging system. Soon the German police wanted to give me a
ticket for "non-standard" lighting. Luckily by that time I was a Dutch
resident and they had to let me go.

LOL, in the U.S. I think the police are so thrilled that a cyclist has a
light at all that the last thing they worry about is if it's as bright
as a vehicle light. However, a couple of months ago my son was home from
college and driving my car and he got pulled over. I had replaced my
7443 incandescent brake light bulbs with these
https://www.superbrightleds.com/moreinfo/tail-brake-turn/7443-led-bulb-w-brake-flasher-dual-function-1-high-power-led-wedge-retrofit-car/925/
which flash prior to going solid. They were not illegal so he didn't get
a ticket. I don't know what the real reason they pulled him over was.

Those 2.4W bulbs were a joke. My bikes (after my teenage years) always
had better lighting than that. Now it's all LED on my bikes but the real
stuff with more than 500 lumens.

I recall that the lights back then came with a clip to hold a spare
bulb. Then people began coming out with home-brew protection circuits.