After much thought i would like to use 10x 1.2V NIMH in series to power a set of 2 mr16 3 or 4 w led bulbs in parallel turning both on only when I really want. Would i need a driver to do this, the internal resistance of the leds dictate aperage draw, or would the setup be inherently flawed? or too susceptable to voltage differences because of the large number of cells. ( though I would be charging each cell individually and checking for bad cells). Also, would it cause issue if I used 2 different types of mr16? I would love a very narrow beam and a wide beam. I am a slow biker so seeing 5-7 secs ahead should not require that much distance. Also would the drop in voltage at such a high amp draw cause issue? It seems that using these was done with halogen bulbs but never really with leds. Very strange
Also is my est of12v at 8W would be 1.5A so 1.4 hour max run time or 12v at 4w w 1 bulb on for 2.8 hour max run time be viable?
these are currently what Im looking at
Tenergy Centura AA Low Self-Discharge (LSD) 2000MAH NiMH / 12pk. $17.01 ac / fs @ s4t
1 PCS 10x AA Size Battery Batteries Holder Box 15V Case With Wire Lead be10aa $4.99
Feit Electric MR16/GU10/HP/LED 35 Watt Equivalent 35W Equivalent 3 LED 120 Volt MR16 GU10 LED Light Bulb x2@$15
or 1 MR16 6W Cree XPE 3-LED 450LM 3800K Warm White Light Spotlight (DC 12V) $16 http://club.dx.com/reviews/text/110524 very high ratings if u trust.
Thanks in advance.
Also is my est of12v at 8W would be 1.5A so 1.4 hour max run time or 12v at 4w w 1 bulb on for 2.8 hour max run time be viable?
these are currently what Im looking at
Tenergy Centura AA Low Self-Discharge (LSD) 2000MAH NiMH / 12pk. $17.01 ac / fs @ s4t
1 PCS 10x AA Size Battery Batteries Holder Box 15V Case With Wire Lead be10aa $4.99
Feit Electric MR16/GU10/HP/LED 35 Watt Equivalent 35W Equivalent 3 LED 120 Volt MR16 GU10 LED Light Bulb x2@$15
or 1 MR16 6W Cree XPE 3-LED 450LM 3800K Warm White Light Spotlight (DC 12V) $16 http://club.dx.com/reviews/text/110524 very high ratings if u trust.
Thanks in advance.