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View Poll Results: Front light max. wattage

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  • <3 watts

    13 15.48%
  • 3-4 watts (often the wattage of a dynamo light)

    9 10.71%
  • 5-10

    11 13.10%
  • 10-15

    21 25.00%
  • 15-20

    11 13.10%
  • 20+

    19 22.62%
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Thread: Wattages

  1. #1
    500 Watts kill.cactus's Avatar
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    Wattages

    What is the wattage on your main front light? If you have a high and low beam option, select the high.

  2. #2
    GATC
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    20W halo

  3. #3
    500 Watts kill.cactus's Avatar
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    I'm asking this b/c I've set up a 20 watt system (or am setting it up). I have two casings so I'm thinking about having a 50 watt that'll remain off until I'm in need at a bright intersection or something. Can't see me? NOW YOU CAN'T SEE ANYTHING!!! (muahaha)

  4. #4
    Goathead Magnet aley's Avatar
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    Most of the common wattages for bulbs fit into two categories. I use a 10W halogen when I commute in the winter; is that 5-10 watts or is that 10-15 watts? Since it's an SLA system that loses brightness as it discharges, I picked 5-10 watts.

    50 watts will blind drivers if it's not aimed carefully, and I shudder to think how quickly it'll burn through batteries.

  5. #5
    GATC
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    Yeah I switched from 15W (2 categories) to 20W (also 2 categories). If I vote for the middle category I'll feel like I didn't really 'upgrade' my light!

    I still wonder about 'effective' wattage too. Dyno people will tell you that 6W aimed along the road will give you better vision than 20W aimed through the air, you know not where. That could be true.

    And then there's LED or HID 'equivalency'

  6. #6
    Dirty old man in training
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    5W Dinotte LED (Dinotte claims it's equivalent to a 12-15W halogen)

  7. #7
    Happy old man al-wagner's Avatar
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    Wattage will not tell you how bright a light will be. Wattage it the rate that the power it uses.
    http://www.thegmbc.com/
    http://www.gmaa.net/

    In New England we have nine months of winter and three months of damned poor sledding.

  8. #8
    Sensible shoes. CastIron's Avatar
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    H.I.D.
    We need to talk gigawatts.
    Mike
    Quote Originally Posted by cedricbosch View Post
    It looks silly when you have quotes from other forum members in your signature. Nobody on this forum is that funny.
    Quote Originally Posted by cedricbosch View Post
    Why am I in your signature.

  9. #9
    Dog is my co-pilot 2manybikes's Avatar
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    16 watts HID, equal to 65 watts halogen.
    [SIGPIC][/SIGPIC]

  10. #10
    Titanium Member
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    3.6W CREE LED, equal to 15-20W halogen

  11. #11
    DNPAIMFB pinkrobe's Avatar
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    13W HID --> ~40W halogen
    Proud Member of the HHCMF
    '06 Cervelo Soloist Carbon | '09 Titus El Guapo | '09 Misfit diSSent | '09 Wabi Lightning

  12. #12
    Slow ride, take it easy - Frankenbiker's Avatar
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    I have twin 20W halogens controlled by a lightbrain. It gives me 7,10,20,30 and 40W with the flick of a momentary switch.

  13. #13
    Dog is my co-pilot 2manybikes's Avatar
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    Quote Originally Posted by Frankenbiker
    I have twin 20W halogens controlled by a lightbrain. It gives me 7,10,20,30 and 40W with the flick of a momentary switch.
    We need pictures. Of the lights and the bike.
    [SIGPIC][/SIGPIC]

  14. #14
    Slow ride, take it easy - Frankenbiker's Avatar
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    The man wants pictures.

    Here's some quick pics:

    5036. The battery box with innards.
    5045. Brake switch
    5047. Front lighting arrangement.
    5048. Rear lighting arrangement.
    5049. Battery/electrical box
    5052. Switches. Light/off/horn and LTS/off/RTS

    It's too crowded in the garage to get good shots and it's too cold and dark outside right now to get better pics.

    I'll do a full workup on how I built this lighting system last December and post the PDF in my signature as soon as the semester ends. I'm busy busy busy busy for about three more weeks.
    Attached Images Attached Images

  15. #15
    Senior Member Chuckie J.'s Avatar
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    Whoah.....

    Is that light setup.... keyed? Only on an xtra-cycle. Wow.

  16. #16
    Slow ride, take it easy - Frankenbiker's Avatar
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    Yes, it has a keyed master on/off switch. It helps keep curious people from playing with the lights/turn signals or accidentally bumping the switches and thus, leaving the lights on til the battery runs down. It also helps to keep an old doofus like me from forgetting to turn the lights off.

  17. #17
    Junior Member
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    Dinotte 5W LED mounted on the bars, supposedly equivalent to 12-15W Halogen
    I also have a 3W Dinotte LED on my helmet.

  18. #18
    Seņior Member ItsJustMe's Avatar
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    13W HID, equiv to probably 35 or 45 watts halogen
    Work: the 8 hours that separates bike rides.

  19. #19
    Ow. JohnnyOTS's Avatar
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    Two Optronics Housings - one with a 20w halogen for the pitch-black rural portion of the commute (when I need to see), and one with a 20LED MR16 for the streetlight portions (when I just need to be seen.) Running the 20w for the entire hour and a half commute was really killing my 7ah SLA battery.

  20. #20
    Mad bike riding scientist cyccommute's Avatar
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    A 20 W flood, a 15 W spot, a 20 W spot and a 20 W spot on my helmet. 75 watts. I've go another lamp so I could add another 20 W but that would be silly



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  21. #21
    Cyclist acidinmylegs's Avatar
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    I'm all over the place with this one... but usually it's the 10-15W range -- LED. Really, you cannot compare wattages... that's a unit of power, not of luminance. And the supposedly equivalent claims are laughable.

  22. #22
    RacingBear UmneyDurak's Avatar
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    That is a kool setup! I was thinking of getting one of those extenders so I can mount multiple lights on it. Although I don't think that particular one will fit on to my handlebars.
    No idea how many watts my light is. It is very visible thought, and painful to look at directly from 50ft away or so.

    Quote Originally Posted by cyccommute
    A 20 W flood, a 15 W spot, a 20 W spot and a 20 W spot on my helmet. 75 watts. I've go another lamp so I could add another 20 W but that would be silly



    Last edited by UmneyDurak; 04-06-07 at 04:07 PM.
    I see hills.... Bring them on!!!
    Stay calm and bring a towel.

  23. #23
    Geosynchronous Falconeer recursive's Avatar
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    400.

    Just before I drope teh hammer on poseurs.

    But seriously: 13. HID.
    Bring the pain.

  24. #24
    Banned. ModoVincere's Avatar
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    10W hi beam, 6W low beam. I generally use the 6W more than I do the 10W though.

  25. #25
    Senior Member kgatwork's Avatar
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    30w HID on the handlebar, and a 10w halogen on the helmet.

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