This is a light that I got from Amazon.
Amazon.com : Sanzo 10000LM 8x CREE XM-L T6 LED Head Front Cycling Bicycle Light Lamp Headlamp Bike for Running, Hiking, Working, Jogging, and Emergencies Bike Bicycle Headlamp Headlight : Sports & Outdoors
If you check that link, you'll see that I was fairly surprised to see what showed up in the mail. The pictures show a circular light. I was expecting to get a something similar what Archie got here: SkyRay 7T6 review
But this is what showed up:
Lookin more carefully at the product description, it's listed as 8x XM-L T6 LEDs, but you can see from the picture that what I got was XM-L2's (I think, let me know if otherwise). This was a set/kit that came with cheapo chinese battery (6-cells!), cheap-o charger, head mount, 2 rubber band for mounting, a cheap-o 5-LED tail light, and a reflective leg band (for pants). All in all, a pretty good haul for less than $20! (19.77).
The light is very bright (I have no way of measuring light output). I can only compare to my ss x2. The A8 is definitely brighter than the x2. The beam pattern is very flood-y. This thing just spills light all over the place. The x2's hotspot outreaches the A8.
I'm just going to post all the picures I have of it:
The button on the back lights up green. It might change color when the battery gets low? I'm not sure because I charge up the pack before each ride. I have not seen it change.
It has a blue "o"-ring on front and back.
Six philips-head screws on the back.
Four on the front.
All 8 LEDs on one plate. It seems to be seated flush against the solid frame with some white paste (thermal?). The thermal situation seems good. It only gets lukewarm when out riding, but almost untouchable when still.
A few more pics of the board/driver for those of you who know of these things.
Might be hard to see in the pics, but the mount has some rotational play/wiggle to it. I assume there's a loose screw under that pad/gasket, but I don't want to peel it off to find I'm wrong. Also, having that little wiggle is actually a bit useful for manipulating the light when there is oncoming traffic. I'm always worried about blinding people with this thing.
This thing is a tank of a light. Someone must have thought, "If 2 LEDs are good, and 3 LEDs are better, then 8 LEDs must be the answer to all of the world's problems!" It is indeed bright, but it just seems like it'd be 10 times better if that light were more focused/directed.
The combination with a more spot-y helmet light works pefectly, though.
I don't know if I did it right, but I used the included head mount and just stretched it around my helmet. I wanted to mount the battery pack lower, but there just weren't any options along the midline.
Overall, it seems to be a solid light. I got it for under $20 (kit w/battery, charger, etc). The seller on Amazon no longer has any in stock. It seems most other sellers are listing it MUCH higher (~$70-80). I not sure if it's worth that much. It's a steal at $20, but a bit simple (under-engineered) for ~$80.
edit: I forgot to mention the UI. Starting from the off position one press ->High->low->strobe(hi). There seems to be a hidden stepless mode. If you hold the button down (start from any mode), the light will start to ramp up/down until it hits the top/bottom level and then ramp back down/up. It will cycle up/down continuously until you let go of the button. The light will maintain that intensity. Another button press will then advance to the next mode (if started in off, goes to hi. if started in low, goes to strobe, etc).
I'll try to answer any questions you guys might have. Keep in mind, this is only my second light. I'm a bit new to this arena. I actually ordered this light, THEN started to look for reviews on it. Remember, I thought I was getting that 7xLED circular light. It was then that I found this forum and started to read about the more neutral white LEDs. I've since ordered a BT40s kit on the group buy and a BT21 light off ebay. Can't wait for those to arrive!
I'll update later with beam pattern if I can get a proper setup. Is there a certain protocol for this? I've only got my camera phone.
edit: dunno why some pics are showing, but others are just links?
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