I bought the H.I.D. light from eBay, you can see it on the right in the above picture.
It is very similar to the Oracle H.I.D. 35 W light, reviewed somewhere else on this forum, but has a smooth reflector.
It is very bright. May be the H.I.D. bulb produces 3500 lumen as stated, I see it being driven very hard. The problem is the reflector and the focusing mechanism, which produces a sloppy beam, and is basically very difficult to improve without replacing the reflector.
My Microfire K3500R Warrior III (at left in the picture) smokes it under all aspects, be it the beam focusing, the light intensity and the tint. At 200 meters, the beam of the Warrior is still well defined, while the beam of the eBay H.I.D. light has already washed out in a generic glare.
I did a little of Internet investigation and the light is build from "Soming.net" in China. They are H.I.D. bulbs and ballasts manufacturer, and this 35 W H.I.D. light is a complement to their product line, togheter with a smaller 28 W one.
A serious problem of this light is the excessive amount of UVB and the presence of some UVC in the beam, which I can trace back to the excess of mercury in the gas mixture, very likely to facilitate the ignition of the bulb and simplify the ballast circuitry.
As matter of fact, there is a glass filter around the quartz envelope, which keeps glowing of an intense blue colour for five-ten seconds after the bulb is turned off.
The glass window at the business end of this light is unable to filter all the UV radiation produced from the bulb; if you conduct a runtime test of this HID light in a closed room, it may give you some (bad) suntan. Since I ascertained the amount of UV this light produces, I don't turn it on anymore in a closed space.
The bulb is potted with the ballast, I believe to cut the production costs; therefore, replacing the bulb is out of discussion.
Also the glass window, during prolonged operation, reaches spit-sizzling temperature, which can lead to a crack in no time.
The light has some o-rings but they are not of the correct size. Therefore, this light cannot be used when it rains. Water can get in the light, and can crack the window because of its unusually high operating temperature.
On mine, the battery is claimed to be 11.1 V 6600 mA/h with 6x18650. So it should be composed of six 18650 cells of 3300 mA/h each.
I measured the battery to be 11.1 - 4000 mA/h, but the runtime claimed from the manufacturer is correct, anyway.
The battery has three spring contacts; two delivers the 12 V, one is a signaling (0, 6, 12 V) to tell the circuitry in the head to be off, 28 W, or 35 W.
The circuitry in the head has a strong parasitic drain, so the battery in itself. I believe the same problems were already tackled here on CPF with the Oracle 35 W. Leaving the battery in the light will reduce the runtime in half within a week.
I have yet to dismantle the battery, but my feeling is... the lack of a charge balancer. I wouldn't expect very long lifetime from the battery.
The user manual is written in English, obtained with the use of computer translator from Chinese language and is unchecked; it is difficult to interpret and laughable in some of its parts.
Beware of the shoulder strap, since it has the tendency to disconnect without reasons; I glued the springy part of the two clips on mine.
All in all, this H.I.D. is a "WOW" light for anyone who never owned a H.I.D. before, but it is definetively a low performer. I believe the three most needed modifications are a real reflector, an UV filter and some correctly sized o-rings. I am looking urgently for a better glass window for this H.I.D., since I consider it the most dangerous shortcoming of this light.
The "You get what you pay for" has never been so true - like it is for this H.I.D. light. It is a bright light with a broad beam, but unusable in closed quarters for the excessive UV, and unusable outside under the rain. Not even a loaner, if you care of your friends...
Regards
Anthony
but not break the bank!
:thumbsup: ) 
