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HID install

I just installed a pair of DDMTuning 35watt, 5000k. hi/low HIDs in my Yamaha Zuma 125. I plan on installing one of the bulbs, (the Yamaha has twin light housings), in my CBR250R when it arrives. The hi/low HID has a reflective metal shield that covers the bottom and front of the emitter. It looks like a cigar tube that has been cut in half lengthwise. Its called a CASPER SHIELD. There is also a large cut out on the bottom of the Casper shield toward the rear. The HID emitter (bulb) is mounted in a housing that contains a magnet and a solenoid coil. The bulb burns at the same brightness for both high and low beams. It is the magnet that moves the bulb forward within the Casper shield the causes all of the light to be reflected up and somewhat back so that it strikes only the upper reflective surface of your headlight housing. The housing will then reflect the light down so that it does not blind oncoming drivers. When you hit the hi beams, a small current (.688 amps) energizes the solenoid coil in the lamp base and pulls the bulb back. So that the light can pass through the opening in the bottom of the Casper shield at its rear. This illuminates all of the reflective surface in your headlight housing and projects a strong beam forward. I was surprised at how effective this system is considering it forgoes the usual projector lens used for most HID systems. The Casper shield blocks the intense, direct light from the of front of the emitter, and the round beam is neatly cut in half. Blocking the top and boosting the bottom so that there is very little glare directed at oncoming traffic. The high beam however is a flame thrower. It actually causes reflective street signs to glow so brightly that they bother my eyes when driving on a dark night. On the plus side though, I've seen the glow of animal eyes on the side of the road from hundreds of yards ahead of me.

The main thing to remember is to install the HIDs with the open side of the Casper shield facing up so the light is directed down. Its a bit counter intuitive.

The HID emitters require a ballast and a switching relay. I'm hoping there is space inside of the fairing to mount them. On my Yamaha I ran a separate #12 wire with an inline fuse to the battery in case there was a short. That way the rest of the bikes wiring is isolated. The existing plug that is on the back of the factory light plugs into a matching harness on the HID relay. So when the bike starts he system is switched on. The high beam wire in that plug also controls the hi beam solenoid.

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