hids4u h7 kit, do i need a relay.

[rc mad]

Just purchased a Single light kit for the dak's (now called beast due to the ammount of people i hear saying "that's a beast isn't it" ) low beam from hids4u, i already have the touratech headlight setup with the hid high beam. The tt kit has a relay to switch power onto the ballast direct from the battery but it looks like the hids4u kit wires directly off the existing light feed, the ballast draws all its power from the existing light circuit

The low beam on the dak is constantly on with the tt light setup.

Is it best to stick another relay between the two or am i ok wiring it as supplied?

My logic say's its best to stick an extra relay in to prevent any damage to the bikes main wiring loom

 

[footloose]

As I read it, you are replacing the Halogen low beam with the HID.
If this is the case then you won't need a relay.
The Halogen runs about 65 watts with the HID around 35-50 watts depending on which one you have. If these figures are correct then you will be drawing slightly less current through your existing wiring to your low beam.
On your high beam, if the HID was a direct replacement for the Halogen then the relay wasn't strictly necessary but if you were running extra lights switched by the high beam, then a relay would be needed to feed those extra lights
As an example, I have a Hella DE light running with my constantly on low beam. The DE is on a relay switched by the low beam wiring with a switch in the circuit. I have a TT Xenon light setup the same way in the high beam (Halogen) circuit.
I will be replacing the Halogen low beam with a HID light kit but I won't be using a relay as the existing wiring will easily cope with the reduced demand of the HID.
I hope this is of help to you.

Brian.

 

[Marks adventure]

Hi

When you fit the kit please can you take some pictures of the instalation and upload them as it will help others (me) in fitting theirs.

How much did it cost?

When are you fitting it?

Ta

 

[ROLLINSDAN]

It's really easy, the hardest part is packaging everything into the little space BM have left! The two exposed end do plug into the existing feed into the OEM bulb, as simple as that! I've done 4000 miles without any trouble at all, I did think about an extra relay at first too, it's really not needed though.


P.S: I am an Auto electrician by trade

 

[Packer]

Not a Dak but I've put dip and head HID's into my 1150gs. The kits came from HID's 4U and again had no relays. As has been pointed out already they actually take less power than the original lamps and I've got brilliant lights with no problems at all. About 3,000 miles now.

I would recommend checking the alignment of the lights. The HID's put the light in exactly the same place as the original lamps but they were set far lower than the specification given in the owners handbook. I aslo found that the head beam overlapped the dip beam by about 50% and so raised the head adjustment seperately which helps give an even greater spread of light.

 

['Nuffsaid]

Not a Beast but ..........

Fitted on my GS12 - I called BWM in the end , and they recommended a relay to protect the Canbus - Intuitively I sense this is overkill belt and braces - but as you said - beeter this than risk a full english breakfast on your wiring loom

 

[rc mad]

Hi

When you fit the kit please can you take some pictures of the instalation and upload them as it will help others (me) in fitting theirs.

How much did it cost?

When are you fitting it?

Ta

Sure, i'll take a few pics

I have a vague idea of where the ballast is going, micky has two hid lights on his dakar, one of the ballasts is infront of the battery and the other is attached to the frame under the l/h fairing.

It cost me £109 from hids4u with ukgser discount and £2.00 off cos i used a debit card

Looks like i'll be fitting it this weekend

thanks for the advice everyone, i'm going to wire it up without the relay, should be a fairly quick install without having to worry about putting another relay somewher on the bike.

I've got the tt twin lights on the dak, And the lights are adjusted as a pair so i guess i may need to modify the mount slightly to bring the low beam upwards without moving the high beam.

 

[rc mad]

Well, i was only going to fit the k&n airfilter tonight, got a bit carried away and fitted the hid kit as well.

There's no spare room on the 650's at all. After much scratching of heads and cursing i managed to squeeze it above the touratech twin headlight, between the screen mounting bolts. It's held captive by a couple of cable ties and once everything is bolted up and tightened it is very secure. Got no pics yet because i forgot the camera when i was putting it together

I'll take some on the weekend when i take it apart to finalize everything.

did get one pic tho

doesn't really do it justice, the low beam (right) is a lot brighter than the aux lights. The tt hid (left) must use a faster ballast as it gets upto full brightness faster than the hids4u kit, doesn't matter tho as the low beam is always on.

If your putting a hid setup onto the standard headlight setup the best place for the ballast is infront of the battery which is where the touratech ballast is, there is no way you'd get a ballast up the front with the standard headlight. The only other possible place is where micky put his ballast for his aux xenon, inbetween the oil tank and the collant bottle under the left fairing, i tried to put mine there but couldn't get it to work