On 3/25/2014 8:53 AM, Jeff Liebermann wrote:
On Tue, 25 Mar 2014 05:40:39 -0400, somebody
wrote:

Now I have seen everything:
http://www.fasttech.com/products/1/1...-3-mode-3200lm

Seven Cree T6 lights (10 watts or 3v @ 3A max).
http://www.cree.com/~/media/files/cree/led%20components%20and%20modules/xlamp/data%20and%20binning/xlampxml.pdf
I'll assume that they run it at 1A to keep the heat down.

The battery pack is too small and is not going to work. The lamp data
sheet shows that the 8.4v battery pack is six 18650 cells, which are
running at 1A output. So, how is this thing suppose to light up LED's
that can use up to 3A with only 1 watt max?

That reseller made stuff up.

The actual manufacturer information doesn't claim any of that stuff
http://www.trustfire.net.cn/product/1723645844-219463416/2014_newest_TrustFire_factory_D013_high_power_led_ bike_light_3200Lm_7_CREE_XM_L_2_waterproof_led_bik e_light.html

Those batteries are certainly able to deliver 4A.

The big question is whether you can power them from a hub dynamo!