Hello Lowndes, I just ordered the cyclops bulbs and am going to also order a headlight modulator from Kisan.
Can you tell me if the the LED bulb have 2 tabs and does it separate from the cooling fan? I'm asking because the headlight modulator would need to be placed in between the LED bulb and fan.
The LED "bulb" is a one-piece unit: the "bulb" or LED element part, with the cooling fan mounted directly on and part of the "bulb" (for efficient heat transfer?), with the "pigtail" connector and ballast or "bulb driver" box with a short lead to the two-blade connector.
I just stuffed the entire pigtail with ballast box into the space between the reflector and outer shell directly below the bulb and connect to the OEM bulb connector there. The air circulation by the fan inside the shell is enough to keep everything happy (so far). I have a Kisan modulator on the K1200 headlight, installed on the OEM wiring before it gets to the headlight. It, therefore, modulates the LED and fan, if that is your concern.
A constant on-off power supply would be bad for an incandescent bulb, not sure about a fan motor. However, I believe the Kisan is a hi-lo rather than on-off. I've read that is OK for LED's and that they run cooler that way rather than constant on.
The following pics are another brand (from ebay) but basically the same construction as the Cyclops unit, and handy for pics.
The complete unit:
The mounting ring/adapter removed:
Closeup of the "bayonette" twist and lock:
All the pics here:https://photos.app.goo.gl/exO8qE0a76U3mrLI3