My Bike Lights - Info, Teardown pics, Beamshots, Current Measurements, etc. . .

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garrybunk
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Yep, simply on/off. I also posted this over in the MTBR\DIY Lighting forum and I think in that thread I mentioned that I considered mounting lights on the underside of my trunk lid, but I wouldn’t have light while loading and unloading my bike to/from the rack (it’s a trunk mount rack). This also makes for a nice roadside emergency light.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques


NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.
garrybunk
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I ran some lumen calcs on some of my lights in my DIY integrating sphere. I feel fairly good about my numbers, though they need verified through the use of other “calibration lights” (I’m in process on that). Please do NOT take these numbers as solid figures! Also, the spreadsheet shows lumens out to one decimal place. They should probably be rounded to at least the nearest 10 lumens. Also remember that ANSI FL-1 standard is the value after 30 seconds.

(CLICK TO ENLARGE)

I like that my BT40S came in right about where I expected it. I had conservatively estimated output on Turbo to be 2000 lumens.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques


NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.
garrybunk
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Location: Johnstown, PA

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques


NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.
garrybunk
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Location: Johnstown, PA

Received one of these Ultrafire F88’s from GearBest, lighthead only for less than $9. Mine is four mode, L-M-H-Turbo without strobe.

Current draw on 2S2P pack (note: double the draw off the pack for estimated current to the LED):

Low-0.09A
Med-0.24A
High-0.47A
Turbo-0.78A

Some quick notes:

- No memory, always starts in Low
- Mount is plastic and screw hole does not go all the way in through the body (i.e. no water ingress)
-Good o-rings everywhere, should be very water resistant if not waterproof
-Glass Lens
-Plastic reflector which screws onto the pill
-Pill “floats” with no direct thermal contact to the body
-Can’t remove pill without destroying wiring to momentary switch (at least I couldn’t)
-Plastic mount cracked when tightened back on after removal
-My battery indicator no longer works after fiddling with trying to remove the pill.
-Very long “22ga” cable (74cm/29in) on the lighthead, MS type connector

Some Pics:

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques


NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.
garrybunk
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So I needed to finish mowing my yard after sunset Saturday night and needed a bright floody light to use (since my mower headlight mod isn’t done). I chose my heavily modded BT40S which worked out great! (Except for the fact that I made the battery cabling quite short for this use.) I wore it on my head attached to one of those typical MagicShine style headbands. Picture shown is on Turbo with battery worn down a bit and taken with my cell phone. I didn’t mow using “Turbo” as it was way overkill. I ran on medium which was still getting quite hot and bumped it to low every now and then. For mowing I’d wish the tint were a little warmer in order to help distinguish cut from uncut. Fortunately in this case the grass was quite tall so it was easy to distinguish.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques


NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.
garrybunk
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Location: Johnstown, PA

Boy I haven’t updated this thread in a LONG time! I really need to catch up! For now I’ll post a link to the light I am currently reviewing on MTBR, the Zanflare B3. Design was based on parameters desired by mountain bikers on MTBR, but the custom build partnership was ended and Zanflare proceeded without us. As you’ll see in the review, this light isn’t the greatest; it has issues.

-Garry

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques


NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.

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