12V 200W bulb

[davidefromitaly]

i use 5 D li-ion batts in series with a 12V bulb

only the bulb is rated 4000hr at 12V

so with 4 batts it last around 500 hours

with 5 batts last around 30-40 hours

with 6 batts last around 2-3 hours...

 

[cmacclel]

So what mighty bulb are you overdriving 12+ volts? 100% overdrive interesting


Mac

i use 5 D li-ion batts in series with a 12V bulb

only the bulb is rated 4000hr at 12V

so with 4 batts it last around 500 hours

with 5 batts last around 30-40 hours

with 6 batts last around 2-3 hours...

 

[cmacclel]

Please tell me your not using Emillions Li-Ion cells driving your 200 watt 12v bulb?? If you are then you are pulling 17+ amps from each cell at the stock 200 watt rating!!


Mac

 

[davidefromitaly]

yes i use emilion D batts but only with 7amps lamps ;-)

you can do 100% overdrive with the osram halostar starlite series

they are all rated 4000 hr at 12V and have axial filament

there are several wattage (at 12v): 5, 10, 20, 35, 50, 75, 90

in my tests i have read:

if with 3 cells we assume 100% of output (near the 12V rated)

with 4 cells is 237%

with 5 cells is 450%

with 6 cells is 776%

p.s.
really in the 6 cells test i have used 5 D and one 18650 cause i have only 5D batts...