Since the modulator is not officially installed on my bike I guess I should refrain from giving a rating. But I had to share my frustration with someone. I decided to have my local dealer install the modulators as I was getting ready to drop my 07 Gl1800 ABS of for a routine service and was going to pick it back up after returning from my vacation. The dealer called me before I left and told me the modulators were defective and I should contact the point of manufacture to get a new set. After contacting Kisan they told me they were sure the modulators were working properly as all units are extensively tested before being shipped (their words, not mine) and the possibility of a unit getting shipped and not working was highly unlikely. Kisan said to take the units back to the dealer and contact them while there if any problems occured again. (by the way the dealer had installed the day/night sensor earlier and I assumed they had kept the wire which runs from the master to the slave unit)..Anyway I returned to the dealer and the service tech (new service tech, the previous tech guy had quit) proceeded to tell me I had the wrong modulators so I had to go through the explanation that I had the correct modulators and that if he needed any help installing them to please contact Kisan. He did contact the Kisan for instructions for installation. After setting in their showroom for 4 hours the tech came out again and asked if I had the wire that connected the master to the slave unit. I told him the previous tech had already installed all the wiring and to check the bike again. He did and said the day/night sensor was installed but that was it. So I left the Honda dealership for the 2nd time without the modulators working and I've had to re-order the wiring that the dealership lost during my first visit. looks like it's going to take 3 trips to the local dealership along with ordering a few parts that were lost along the way to complete this process. ( I downloaded the installation instructions from the Kisan website and gave them to my dealer during my first visit. Guess what? They lost those as well!!

Another update from my previous review.

Kisan had confrimed the existence of the problem. It can be called "2-second lock-out code" failure: "So, flicking the hi-beam on/off rapidly at night will cause the error code of 8 flashes."

KisanTech.com really answered me on time. But, I don't know why, my GMAIL puts them in the "Spam" folder. I am sorry about that.

Here is the answer from Kisan:

"I discussed this with our software guys a few times but did not get a clear answer. It seems the '2 second lock-out' code is not fully implemented for all pathBlazer models across the board yet. This is due to the fact that different models go in to production at different times with different production runs.

P115W-D is not scheduled for next production run till November 2008. The lock-out code will be implemented at that time.

So, flicking the hi-beam on/off rapidly at night will cause the error code of 8 flashes."

So, if you are in no hurry, wait until November 2008.

Update from my previous review.

Good for the day riding but problem and even danger for night riding and terrible support.

If you are riding at night, at least for my case, this modulator really has a problem with its "8-time flashes revert-back confirmation" of sensitivity adjustment. It means that whenever you intentionally or not flick you hi-beam light at ANY time of riding (not only first 2 seconds after the ignition is turned on as mentioned in the manual), the modulator "thinks" that you are trying to setup the sensitivity. For the reason that you are at night, the modulator will not accept the setting and give you back an "8 times hi-beam flashes" confirmation. AND, this 8 times flashes will ONLY terminated if you keep the hi-beam on and waiting it until all flashes are done completely, if you turn hi-beam off before, it will restart from zero next time when you turn it on again. This "extra-function" really bothers other drivers at night and you just lose your normal hi-beam functionality and it really distract your attention of riding which is quite danger.

I have tried to make contact 3 times with Kisan (by sending message to www.kisantech.com) support but with no any answers from them.

I am currently building a “by-pass” circuit to switch it off completely out at night and I hope it is going to work.

Update: I installed my modulator about 1.5 years ago and used to run them all of the time until I got stopped by the local deputy sheriff. He was quite upset with me. I showed him a copy of the law, but that didn't make it any easier for him to accept. He thought the law was dangerous as he said that drivers already ignored their lights and by adding these modulators to non law enforcement vehicles it would only make the matter worse. I felt bad for him. I do run them on rare occasions when I feel they are really necessary. They do work in getting others attention.

Excellent product and there is "no-documented" function that can be used in the night: quick click two times high beam switch, and now you can have a “self-flash” high beam light. It will self flash nine times and then stay on, if you turn it off and turn-on again before, it will remain 9-time flash. But this self-flash is slower than the day-light flash.

Here is the procedure I used for GL1800 Airbag 2008 and I think it works for those “big-hand”:

1. Remove Ignition switch cover,
2. Remove Meter panel,
3. Remove Center Front Shelter,
4. Remove Fairing Molding (left and right),

For right side high beam

5. Remove right upper panel switch,
6. Release two bolts of cruise actuator and release it,
7. Unplug cable and plug modulator master/slave and then plug cable again

For left side high beam

8. Remove left fairing pocket,

There is no way to reach the high beam plug for the foot warmer ventilation louver lever, so the best way to reach it is:
9. Remove left shelter inner cover:
9.1 - trim clip (flat head),
9.2 – 4 bolts of top left shelter,
9.3 – now you can reach the plug of left high beam,
10. Unplug and plug modulator master/slave same as right side
11. Connect the control wire to slave modulator,
12. Install cable between two modulators and sensor (I zip-tie it on the break cable)
13. Reinstall in the reverse order.