Spot Lights

Submitted: Tuesday, Apr 13, 2010 at 18:50
ThreadID: 77695 Views:7906 Replies:11 FollowUps:10
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Hella recommend you place a pencil beam on the left of the vehicle to illuminate the roadside and a spread beam on the right to illuminate the centre of the road. Is this correct? as most of the spot lights I have seen on 4x4 Vehicles including mine!! are the other way around, the spot light on the drivers side and the spread on the passengers side.
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Reply By: Member - Allan B (QLD) - Tuesday, Apr 13, 2010 at 18:58

Tuesday, Apr 13, 2010 at 18:58
Is this Hella information for countries driving on the Right-hand side of the road maybe?

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Allan

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AnswerID: 412788

Reply By: Member - Stuart P (WA) - Tuesday, Apr 13, 2010 at 19:16

Tuesday, Apr 13, 2010 at 19:16
must be for european market . most of hella's spotlights world wide are produced in NZ , is this infomation for their market?
AnswerID: 412793

Reply By: cobber - Tuesday, Apr 13, 2010 at 19:33

Tuesday, Apr 13, 2010 at 19:33
http://motorcare.com.au/content.php?pageid=1243571863&display=6624&action=product

B: Hella recommend you place a pencil beam on the left of the vehicle to illuminate the roadside and a spread beam on the right to illuminate the centre of the road. (Naturally, reverse this advice if you drive on the right hand side of the road in your part of the world).

AnswerID: 412799

Reply By: Kanga1 - Tuesday, Apr 13, 2010 at 19:58

Tuesday, Apr 13, 2010 at 19:58
Cobber, rule of thumb. Pencil/spot beam on the drivers side of the car, spread beam on the passengers side of the car. Cheers, Kanga.
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AnswerID: 412805

Reply By: Member - Roachie (SA) - Tuesday, Apr 13, 2010 at 20:16

Tuesday, Apr 13, 2010 at 20:16
Really, let's face it and be totally honest.....these 2 lights are about a poofteenth of a meter apart and it really makes stuff-all difference which way you set them up as far as the point of this thread is concerned....

You will see much more difference if the alignment of the light is a fraction of a degree off centre line than any difference occasioned by the placement of pencil/spread on varying sides of the bullbar.
AnswerID: 412806

Follow Up By: Muntoo - Tuesday, Apr 13, 2010 at 20:32

Tuesday, Apr 13, 2010 at 20:32
Yes and no.

The closer your eyes are to the actual narrow beam of light produced by the spot the better. Just like when looking at an animals eyes in the torch light, if next to the person with the torch/light you cant see the refelection but if your holding the torch the reflection cant be missed.

But, it all comes down to where abouts your lights are mounted and such.
But definitely the closer you are to seeing straight down a beam of light the easier it is on your eyes.
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Follow Up By: Mark Howlett - Tuesday, Apr 13, 2010 at 21:53

Tuesday, Apr 13, 2010 at 21:53
Even though I have the spot on the drivers side I think the difference is minimal. I'm with Roachie on this.
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Follow Up By: Ray - Wednesday, Apr 14, 2010 at 00:35

Wednesday, Apr 14, 2010 at 00:35
I have never liked the spread beam and spot system. I've tried it and never liked it. I prefer the two spots,in my opinion a much better light.
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FollowupID: 682872

Follow Up By: Member - Roachie (SA) - Wednesday, Apr 14, 2010 at 08:16

Wednesday, Apr 14, 2010 at 08:16
I should have added....I've tried the various combinations of lights and I thought my penultimate choice would have been the best possible....which was a pair of Lightforce XGTs converted to 55w HID. One had a clear (pencil beam) cover and the other had a semi spread beam cover.

I've since sold those and now have 4 Lightforce 170 Striker lights, all of which have been converted to HID 55w. These are mounted such that the centre 2 lights have pencil lenses and point straight ahead. The outer 2 have the semi-spread covers and each is angled ever-so-slightly off to it's own side of the road.

The result is that I get very good coverage of the whole road (including off the the far right where animals may not get picked up by a pencil beam light).

Roachie
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Follow Up By: Member - Roachie (SA) - Wednesday, Apr 14, 2010 at 08:18

Wednesday, Apr 14, 2010 at 08:18
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Follow Up By: Member - Roachie (SA) - Wednesday, Apr 14, 2010 at 08:19

Wednesday, Apr 14, 2010 at 08:19
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Sorry the 2nd photo (above) was abit stuffed-up.....hahaha
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Follow Up By: PradOz - Wednesday, Apr 14, 2010 at 19:37

Wednesday, Apr 14, 2010 at 19:37
I agree with you Roachie and love your set up. As soon as i seen your photos i thought you would start an arguement about how you have them set up would block airflow etc etc blah blah blah ;)

Interestingly I googled what was originally asked only a couple weeks back just to see what was "said/recommended" to compare with my own setup. The result: do what ever suits you as it was 50/50 either way - a poopteenth in it as you say! - cheers....
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Follow Up By: Mark Howlett - Wednesday, Apr 14, 2010 at 20:50

Wednesday, Apr 14, 2010 at 20:50
The air-flow argument is an interesting one. I remember asking on PradoPoint a question about whether my Lightforce 240's would fit on a Smartbar that I was looking at buying and one member very strongly put forward that blocking so much air with these big lights is something he would never do with the appropriate arguments to back his case. Well I was putting them on one way or the other and we towed our camper for 25,000kms up around the North with some mid 40 degree days and the needle didn't budge from normal.

I think if things did get hot then there's a problem else where - it's not the lights, they've only brought the issue to attention.

Mark.
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FollowupID: 682976

Follow Up By: Muntoo - Thursday, Apr 15, 2010 at 11:46

Thursday, Apr 15, 2010 at 11:46
I suppose though if a company like Hella recommend the lights set up a certain way, im pretty sure they know what there talking about. After all, they are the world leader in automotive lighting.

Personally im a Lightforce man. Spotters all the way
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FollowupID: 683031

Reply By: Member Brian (Gold Coast) - Wednesday, Apr 14, 2010 at 06:44

Wednesday, Apr 14, 2010 at 06:44
I couldn't decide on which light should go where so I have three lights, the middle is a spot with a 130 watt bulb and the outer two are 100 watt spread beams..... lights my world brightly!!

But for those with two, I agree with Roachie. Originally I had two lights and according to a neighbour, who was a truckie and "knew" about such things, I had them wrong. So I changed them and Voila!! Viva la NO difference! The difference came with the addition of a 3rd light as mentioned above.


Cheers

Brian
AnswerID: 412848

Follow Up By: OzTroopy - Wednesday, Apr 14, 2010 at 16:26

Wednesday, Apr 14, 2010 at 16:26
Yep ... thats my favourite set up ...

Max visibility with minimum power drain.

Sadly down here in nanny state central where they cant balance the books .... they try to balance your bumper bar instead ... so auxilliarly lights have to be in pairs ......

So I just run two spots and some upgraded headlight wiring and bigger headlight bulbs.

NSW RTA ......


And no I wont be fitting HIDs ... I got a trailer load full of 30yrs worth of leftover roo struck driving lights ... that will last me well into the future.
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FollowupID: 682932

Reply By: Member - Boobook - Wednesday, Apr 14, 2010 at 07:27

Wednesday, Apr 14, 2010 at 07:27
Spot ( pencil) should be on Passengers side and spread on Drivers side.

The reason being

1)The spread beam throws a shorter distance where parallax error is higher. Therefore it is better to have the spread nearer the line of your eye to reduce shadows.

2)The spot is the one most likely to affect drivers coming the other way before you dip. The further away from the road center line the better. ( though this is marginal).

Also if you often drive on tighter roads being able to turn the spot off is a good idea as it is too concentrated and distracting around corners.

AnswerID: 412851

Reply By: Member - Tour Boy ( Bundy QLD) - Wednesday, Apr 14, 2010 at 09:04

Wednesday, Apr 14, 2010 at 09:04
The spread of modern headlights are pretty good these days so I only ever use pencil beam driving lights angled ever so slightly to the left and right and there is no shadow area between the headlights and the driving lights, merely one continuous area of light from the car to about 800m up the road. Lots of skippy's around here.
Cheers
Dave
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Dave
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AnswerID: 412859

Reply By: DIO - Wednesday, Apr 14, 2010 at 09:20

Wednesday, Apr 14, 2010 at 09:20
Two 'pencil beams'. Right hand one angled slighty to the left and left hand one angled slightly to the righ. When negotiating bends and or curves the off-set lights do help in 'illuminating around the curve'. Old rallying trick, works for me.
AnswerID: 412861

Reply By: TerraFirma - Wednesday, Apr 14, 2010 at 12:18

Wednesday, Apr 14, 2010 at 12:18
I have one pencil and one spread, works very very well (HID). Close to a kilometre illumination I am told.
AnswerID: 412882

Reply By: nickb - Thursday, Apr 15, 2010 at 22:49

Thursday, Apr 15, 2010 at 22:49
I bought some Narva 225 lights. I specifically ordered them both as spread beam.

I figured I won't be travelling that fast at night and seeing roos on the side of the road is more important to me than seeing a sign a km away.

The light doesn't extend as far as a pencil beam would obviously) but the spread of light is fantastic. I have them angled ever so slightly outwards and it covers the edge of the road very well.

I used to have a pencil beam on the drivers side...
AnswerID: 413080

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