lighting.....

Discussion in 'General Questions' started by unior, May 16, 2010.

  1. unior

    unior Member

    I've searched. Does anyone on here drive at night? At speed? I am trying to decide what led light array I can purchase or slap together that I won't overdrive at 25mph.
     

  2. Porkchop

    Porkchop Member

    DO NOT SKIMP on a head light. Good head lights start at about $100.00 and go up from there on the retail market. The cheap things you buy at Walmart, K-mart are useless on a motored bike. They don't supply enough light to give you reaction time. They also don't give much peripheral vision either. I suggest you do your home work on high end lights to get aware of what’s out there and then maybe go to eBay and see what you can get one for. Last year I lucked up on eBay and got a $150.00 Cygolite brand, brand new in the package, delivered for $50.00. Don’t expect them to be like a head light on an automobile, but the upper end lights are way better than the cheap things from the department stores. You can’t put a price on safety and life. See and be seen !!!
     
  3. unior

    unior Member

    So you ride at night? And your headlight will suffice at speeds of 25mph?
     
  4. srdavo

    srdavo Active Member

  5. Porkchop

    Porkchop Member

    Yes ! I do most of my riding at night. I have a Cygolite Hi-Flux 200. I’d say it’s marginal for speeds in the mid 20’s. I tried some of the more expensive lights from the department stores, and there’s no comparison. You can also get head lights with 2 or 3 bulbs. Depends on how much you want to pay. Check out the link srdavo posted. You might find something there you like. The light system I have is not one of the better ones, but it get's me by with confidence. Even though it's not one of the better high end bicycle lights, it's still much better than cheap ones from the department stores.
     
  6. unior

    unior Member

    Thats neat a friend pointed out the cygolites. I saw a 150 lumen single led model for $60...prolly should've just bought one of those though now I am toying around building a multi led headlamp. I just need to know how much light output I would need to cruise in the dark. Thanks for the real word info!
     
  7. Porkchop

    Porkchop Member

    Head Lights

    Check out the link below. I have one of these one my bike along with the Cygolite HI-FLUX 200. This light is not suitable for fast riding. Would be great for a peddle only bike. This is the first light I bought for my bike. $10.00, what the heck. I live, I learn. The reason I left it on my bike is the fact that actually does help a little, but mainly it can be set to flash. Hopefully it gets on-comers attention a little better than a steady light. I have lights galore on my bike. Head lights, tail light with flasher, brake light and wheel mounted lights as well. I've had a couple of cagers to tell me there's no excuse for anyone running me over from behind, that I am well visible. Heck, it might be safer to ride in the dark. Attached is a photo of the front on my bike showing lights. Don’t let size fool you. The single lamp Cygolite puts out way more light than the 53 led bulb unit. I've purchased several items from Dealextreme. Quality is as good as anything else from China that you'll find at a local department store.

    http://www.dealextreme.com/details.dx/sku.2933
     

    Attached Files:

    Last edited: May 19, 2010
  8. Porkchop

    Porkchop Member

    S.C.U.B.A. Lights

    One of my buddies from here on the forum is also into SCUBA diving. He uses a SCUBA flash ligt mounted to the handle bars on his bike. You can buy them for around $30.00 and on up. I understand they are way bright. Much brighter than a conventional hand held flash light. Handle bar mounts for flash lights are available at many different places. There are bunches of alternatives for bike lights. I guess the bottom line is, depends on what you want and what you can afford. Hope this little tid bit of info helps !
     
  9. Porkchop

    Porkchop Member

    I'm looking at the box my Cygolite came out of right now. It says it has a solid state emitter, what ever that means exactly, and is equivelant to a 10 volt halogen bulb. From my personal experience, I would not go with anything less. 15 or 20 watts would probably be great for a bicycle.
     
  10. unior

    unior Member

    I purchased 10, 10mm white leds off ebay for $15. They are rated 1 watt each. I'm going to run 6 of them off an rc car pack split into 2 packs. Ill find out how well they work. I'm not 100% sure how well they will work because I never experimented with different leds and viewing angles. The ones I ordered are 25 degrees or something so the light will be focused.
     
  11. augidog

    augidog Banned

    go to the lighting & electrical section & learn how to build yer own SLA-based system. well worth it, as anyone who's done it will tell you.
     
  12. unior

    unior Member

    sla = sealed lead acid battery?

    I looked at a few although decided against one. An SLA would've charged off my car battery charger and had more capacity. However I was mainly concerned of the possibility of battery acid spillage in the event of a wreck. I also would've had to use a voltage regulator and/or resistors for sure.

    I'm trying to build essentially two, arrays of three leds into one round housing. Powered from a 6 cell 3300mah rc car pack split it into 2 packs of 3 cells each.

    Heres an incredibly crude schematic i whipped up since i'm bored.
     

    Attached Files:

  13. GearNut

    GearNut Active Member

    Use a true gel battery or a AGM SLA battery.
    AGM means Absorbed Glass Mat. You can poke a good sized hole in the side of one and get barely a drop out of it.
    Now, if it gets squashed in an impact, all bets are off!