With any electric vehicle, power reserves are of paramount importance - every watt counts. Lighting can be a power hog, particularly if it's spiffy halogens so they're often out of the question. Problem is while 12v DC lighting & accessories are plentiful and inexpensive... anything other than 12v gets tricky with a limited selection & often skyrocketing costs.
So after some shopping around I got a pair of LED MR16 Halogen replacement cool white spotlights (12V 4W/440 Lumen - 50 Watt Equivalent) to play with, one with a 30° beam angle (high beam);
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_78d3809f.jpg&hash=6a9e1ea2cdfd3f7a35a321548e54114f)
http://www.amazon.com/gp/product/B005YUS7FG/ref=oh_details_o00_s00_i01 $4.99
and one with a 60° (low beam);
http://www.amazon.com/gp/product/B005YUVP9G/ref=oh_details_o00_s00_i00 $4.99
Conveniently for me, they just fit in the old headlight from my now stripped Schwinn (it's one of Norm's wonderful bullet housings), so I stuck the 30° beam one in there;
...but if you're not fortunate enough to just happen to have a 2" housing & bezel kickin' around you can get crafty and make a mount for just the bulb itself w/o a housing (it's completely sealed ofc) or you could get a set of something like these driving lights & just pull the greedy 55w halogen out of it;
http://www.walmart.com/ip/Driving-Light-Kit/16680058 $18.98 pair
Ofc you'll need to use a DC to DC step down converter to power it, which one exactly depends on your battery pack voltage... but there's plenty to choose from w/a lil bit of hunting around on ebay or wherever. I've gotten this one for my 48v pack;
http://www.ebay.com/itm/DC-DC-Conve...462?pt=LH_DefaultDomain_0&hash=item1c25d40226 $17.59
...and it's a nice enough lil unit for the money & I've had no problems w/it - but if you'd like a somewhat better one they're quite common w/various input voltage options for the electric golf cart application. Here's an example of a 48v to 12 unit;
http://www.ebay.com/itm/48V-to-12V-...cer-/150850732934?hash=item231f678386&vxp=mtr $39.99
For the LED taillight a simple trim/marker light will do nicely, they're commonly available at most auto parts stores and are quite inexpensive. I've this lil one for example;
http://www.amazon.com/Clean-Blazer-...?s=automotive&ie=UTF8&qid=1342071006&sr=1-111 $6.99
There's some peripheral efficiency loss w/e you use a converter, so the consumption wouldn't be as ideal as using 48v lights, but the loss is marginal - very marginal when you consider what 48v LEDs cost & their limited selection & availability lol
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_ff78abec.jpg&hash=ea9c2b991abb4484506a053cf9ef4467)
So after some shopping around I got a pair of LED MR16 Halogen replacement cool white spotlights (12V 4W/440 Lumen - 50 Watt Equivalent) to play with, one with a 30° beam angle (high beam);
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_78d3809f.jpg&hash=6a9e1ea2cdfd3f7a35a321548e54114f)
http://www.amazon.com/gp/product/B005YUS7FG/ref=oh_details_o00_s00_i01 $4.99
and one with a 60° (low beam);
http://www.amazon.com/gp/product/B005YUVP9G/ref=oh_details_o00_s00_i00 $4.99
Conveniently for me, they just fit in the old headlight from my now stripped Schwinn (it's one of Norm's wonderful bullet housings), so I stuck the 30° beam one in there;
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_43edfbdd.jpg&hash=17c9f5203ed907b56b581d268c25f0a6)
...but if you're not fortunate enough to just happen to have a 2" housing & bezel kickin' around you can get crafty and make a mount for just the bulb itself w/o a housing (it's completely sealed ofc) or you could get a set of something like these driving lights & just pull the greedy 55w halogen out of it;
http://www.walmart.com/ip/Driving-Light-Kit/16680058 $18.98 pair
Ofc you'll need to use a DC to DC step down converter to power it, which one exactly depends on your battery pack voltage... but there's plenty to choose from w/a lil bit of hunting around on ebay or wherever. I've gotten this one for my 48v pack;
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_e7afb08f.jpg&hash=8fab709301fbe86498f6ea64f2d24eac)
http://www.ebay.com/itm/DC-DC-Conve...462?pt=LH_DefaultDomain_0&hash=item1c25d40226 $17.59
...and it's a nice enough lil unit for the money & I've had no problems w/it - but if you'd like a somewhat better one they're quite common w/various input voltage options for the electric golf cart application. Here's an example of a 48v to 12 unit;
http://www.ebay.com/itm/48V-to-12V-...cer-/150850732934?hash=item231f678386&vxp=mtr $39.99
For the LED taillight a simple trim/marker light will do nicely, they're commonly available at most auto parts stores and are quite inexpensive. I've this lil one for example;
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_faac6c00.jpg&hash=03783931ffa3b33f7ecb9b23fc10ed1b)
http://www.amazon.com/Clean-Blazer-...?s=automotive&ie=UTF8&qid=1342071006&sr=1-111 $6.99
There's some peripheral efficiency loss w/e you use a converter, so the consumption wouldn't be as ideal as using 48v lights, but the loss is marginal - very marginal when you consider what 48v LEDs cost & their limited selection & availability lol
![](/proxy.php?image=http%3A%2F%2Fi305.photobucket.com%2Falbums%2Fnn210%2FSerenity151%2FMongo%2Fth_ff78abec.jpg&hash=ea9c2b991abb4484506a053cf9ef4467)