Electronics, Lighting, & Gadgets - Build my own or purchase a light: Want to be able to SEE and be seen

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




DTownDave22
09-01-07, 10:37 PM
I purchased this light combo from Nashbar (http://www.nashbar.com/profile.cfm?category=6000101&subcategory=60001066&brand=&sku=15863&storetype=&estoreid=&pagename=Shop%20by%20Subcat%3A%20Light%20Combos). I posted one issue about it being lit still (faintly) after shutting it off. That is ok. What I didn't know about this light is that is a light intended for me to be seen but not help me see all that much.

So, I have already sunk an accumlative $910 into a bike and bike related items (the bike is a Trek 7.5 FX--non disc brakes--probably should have bought a bike with disc brakes). Accessories include the light combo, clothing, a helmet, air gauge, and pump and a few others.

I don't really want to spend too much more than say $50 on a lighting system that allows me to see well enough at night. The back light seems to be OK, but some people seem to prefer a brighter back light--so maybe all I need is a front light. Spending upwards of $200, $300 seems like too much for lighting--it is for safety, but still. I don't plan on riding too fast, say an average speed of 15-20 MPH and maxing out at I'd say 25-30 MPH (may be overestimating here). This is hard for me to say precisely though because I am newer to biking and usually bike alone and I also don't have a computer on my bike. I do plan on riding in the road, so that's why this is an issue.

Can I save money by making my own lighting system? I am not a "total geek" but I wouldn't mind delving into some geekiness if it can save me some money--I may even enjoy it. Doing some browsing on Nashbar, it seems lighting systems can get up there in price and those are the big boys that let you be seen AND see.

I think I'd be happy with the visibilty afforded by this lighting here found in the "Light selection guide" thread.

http://terrengsykkel.no/img/guide/tester/lykter2005/full/Niterider_Storm_HID_styre.jpg


It's a Nite Rider Storm (I think). Not sure on the price on that, but it's probably too much than I should be spending and want to spend.


I checked out the "Total Geekiness" thread and while I think I'm capable of putting a lighting system together, I'm not familiar with the more technical jargon. I could do with more visuals though in those two threads AND more BOLD to serve as headings and also highlight more distinguished info--they would really compliment them. Also, quite a few of the links are dead. They could use some sprucing up at least in the initial pages. I know the postings are old, and that's why I made the suggestion.

If any of you all could steer me in the right direction, I would really appreciate it. :)

~Dave


Frankenbiker
09-02-07, 02:30 AM
Yes, you can save money by making your own lighting system.

It looks like you want something like the NiteRider Firestorm HID that puts out the equivalent of a 40 Watt halogen bulb, but not at the $450ish price tag. Unfortunately, fifty dollars isn't going to go very far in terms of lighting quantity and quality if you want something bright enough to see and avoid small tree branches and beer bottles in the road a block or more away while riding at speed.

If you've perused the TG thread, then you've probably seen my lighting setup. In round numbers (less shipping and handling) a 40Watt DIY halogen system will cost about $100. (Assuming you already have tools, e.g., soldering iron, solder, pliers, screwdriver, etc.)


$20 - Twin driving light housings from JCWhitney (plus shipping) so you can run 20 or 40Watts.
$15 - Two 20W MR16 halogen lamps from local hardware store.
$15 - (estimated) DIY mounting hardware, wiring, fuse and connectors obtained locally. No switch, just plug it in.
$15 - 12V 7.5AmpHour sealed lead acid battery from Batteryspace.com (plus shipping) runs a 40Watt halogen for about two hours.
$25 - 3 Amp battery charger from Batteryspace.com (plus shipping)
$10 - Miscellaneous forgotten bits

Sorry about the TG thread, we started a TG 2.0 thread several months ago, but it was lost along with numerous other threads when the server crashed shortly after the thread's creation and the thread wasn't re-started.

znomit
09-02-07, 03:08 AM
That is an awful lot of light, especially for the road. Im happy with a quarter of that (12w). More makes me happier of course but you have to draw the line somewhere!

You can easily put together a halogen head for 50 with a lot of change but the battery will push that up. Seee my tennis ball holder here:
http://www.candlepowerforums.com/vb/showthread.php?t=172044
I think that came to about 25US$
Ok for 20w but I wouldn't run a 40 in it without testing. Off the shelf driving light housings are very popular too.

Building lights is easy...its finding nice mounting for them and the batteries thats hard!

Also think about how you are going to cart around the battery. I had a 3.4AH SLA either in my camel back or strapped to rear rack. Major hassle. As was recharging after only 2hrs.


chele519
09-02-07, 01:11 PM
I'm going to do my own setup too. I bought a set of the Optronics lights from Ebay last week for $12 with shipping. If you do a yahoo search for Optronics Qh7cc, there are a few other websites that describe setting this up. The biggest expense will be the battery but you can get a cheaper one if you don't mind the weight. The one I'm going to get is more expensive, $65, but it's only 1 1/2 lbs. I'm not that technically inclined, although I did wire my whole basement myself, but I have a guy at work that will help me if I get stuck.

Sir Bikesalot
09-02-07, 05:52 PM
Try candlepowerforums.com (the bike section) here for some more DIY ideas

http://www.candlepowerforums.com/vb/forumdisplay.php?f=86

But as was said previously, it'll be hard to get the kind of light you want for $50. You may want to consider a single Cree LED flashlight, putting out >100 lumens. I have the Fenix L2D CE (about $55) and it's pretty bright at 135 lumens. However, I find it to be too much of a spot light, so I mounted it on my helmet and ordered a Jet Lites Axis halogen system for the handlebars...yup, once you've had some light, you always want more ;)

paulwwalters
09-02-07, 06:15 PM
Try candlepowerforums.com (the bike section) here for some more DIY ideas

http://www.candlepowerforums.com/vb/forumdisplay.php?f=86

But as was said previously, it'll be hard to get the kind of light you want for $50. You may want to consider a single Cree LED flashlight, putting out >100 lumens. I have the Fenix L2D CE (about $55) and it's pretty bright at 135 lumens. However, I find it to be too much of a spot light, so I mounted it on my helmet and ordered a Jet Lites Axis halogen system for the handlebars...yup, once you've had some light, you always want more ;)
I have the Fenix as well. It's a kick ass flashlight, but it's definitely a spot. I may get a 2nd and have it pointed more downward.

tspoon
09-02-07, 09:40 PM
Also try some of these dirt cheap chinese torches, maybe with some sort of handlebar bracket, or strapped to your helmet.
http://www.dealextreme.com/

hr2510
09-03-07, 02:13 PM
I don't really want to spend too much more than say $50 on a lighting system that allows me to see well enough at night. Can I save money by making my own lighting system? I am not a "total geek" but I wouldn't mind delving into some geekiness if it can save me some money--I may even enjoy it. Doing some browsing on Nashbar, it seems lighting systems can get up there in price and those are the big boys that let you be seen AND see.~Dave
Malibu CL507 35watt landscape light $16
12volt 8Ah sealed lead acid battery $14.50
12V 1000mA Sealed Lead Acid Battery Charger $15

Plenty of light for under $50.
3 hours run time between charges
With a 12 volt system, you have many 12v LED light options and/or a Xenon strobe light to use for a tail light also. The bad news....the battery weighs 6 pounds. If you don't mind the weight it's a good bang for the buck. If you only need a shorter run time then you could go with a smaller lighter battery.

hr2510
09-03-07, 03:27 PM
A simple electrical conduit clamp is what I used to mount the light. The landscape light may be larger than you want. Here's some pic.s to give you a idea.
http://i2.tinypic.com/6c3mo2p.jpg
http://i6.tinypic.com/52wnl74.jpg