Originally Posted by
runner pat
Couple of points. There is no way you're getting 5000 lumens for 11 bucks.
Ask yourself why any manufacturer would want to conceal their identity.
I bought one of these:
6200LM 3x CREE T6 LED Bicycle Bike Light Headlight Flashlight+Battery+Charger UK | eBay

I paid £16 which included shipping costs (approx $22 USD) ....
seller advertises it as 6200 lumens. What I can however say is that I have been using it for several weeks and commute at night, 5 days a week on very dark cyclepaths/back roads. I use it with the headband that was supplied and it has 3 settings (low, medium, high) ....
On low, it is very very bright and works brilliantly with the headband. I have only used it on the low setting
The battery pack is placed in my cycling jacket pocket. I have not tried mounting it on my handlebar as I don't like faffing around in the dark with rubber bands every time I need to mount or dismount it.
It came with the battery pack, charger, headband and rubber mounting straps. I have had a few cyclists asking me where I bought it and how much it costs. I use this in conjuction with my Cygolite Hotshot which is mounted on my rear pannier rack.
It's been one of my best buys so far