I've just ordered this "20W 1800LM" light, to replace one of broken lights on the handlebar. I might try lifting my bike up the stairs to my workshop-like area for a proper inspection, in a week or two. I need my left wrist sufficiently healed, so I can hold onto the bannister while the bike's on my shoulder. For now, I know the electrical system works. If this light's good, I'll add a second to the handlebar, they'll have independent switches for when battery is low, or when I need more range:
12V-80V DC 6 LED Electric Bicycle Bike Ultra bright Waterproof 1800LM Powerful Headlight Motorcycle Light. 1x LED Headlight. High transmission,correct curved plastic lens for better luminous efficiency.
www.ebay.co.uk
I have to be careful repairing the bike, because I'll be tempted out for a test ride. A bike slightly non-functional until my wrist heals, if I have the will, would be a wiser course of action. This splint velcro wrap thing should allow me to make light repairs with both hands (fingers work), if I don't prang the injury and unsettle my amazing self-repairing body system. Someday bikes will be able to do it too... they might be called "AlexaBike" or "SpotTheBike" or something. I live for the day I can simply say "Spot, grow two new 20W headlights on the handlebar", but I fear I won't live quite that long, not while badgers stalk the roads. There should be badger/critter tunnels under roads, or bridges over them. I should campaign.