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Jockeys headlamp

PostPosted: Mon Aug 29, 2016 6:24 pm
by Tractorman
Can you use a 60/55 watt bulb in a Jockeys headlight conversion without melting the lens, please?

Re: Jockeys headlamp

PostPosted: Mon Aug 29, 2016 8:11 pm
by MK Monty
I ran one for a few months without a problem with the lens but the extra watts with all my other bits and bobs just seemed to be a step to far for the stator output. that was with full DC and battery my rear indicator LEDs and extra brake LEDs were not very good. I opted for a 35w HID with the Ballast replacing the horn. Even more light with low watts. If you put your hand over the lens you can feel the heat but the lens is cool enough. Personally the JB gives a good output with a standard halogen compared with the reeded standard lens

Re: Jockeys headlamp

PostPosted: Mon Aug 29, 2016 8:23 pm
by Tractorman
Thanks, I'll try the supplied bulb first.

Re: Jockeys headlamp

PostPosted: Mon Aug 29, 2016 9:34 pm
by Warkton Tornado No.1
Has anybody tried HID with a fluted glass lens?

I was wondering just how ‘bad’ it might actually be :idea:

The alternative might be to obtain a Ø125 mm/5” glass lens from a spotlight & graft on to a Lambretta heat proof (non plastic) reflector. Does anybody know of where such an item may be acquired, please :?:

Re: Jockeys headlamp

PostPosted: Mon Aug 29, 2016 10:16 pm
by MK Monty
Warkton Tornado No.1 wrote:Has anybody tried HID with a fluted glass lens?

I was wondering just how ‘bad’ it might actually be :idea:

The alternative might be to obtain a Ø125 mm/5” glass lens from a spotlight & graft on to a Lambretta heat proof (non plastic) reflector. Does anybody know of where such an item may be acquired, please :?:

I
The standard lambretta reflector is like a coolies hat it's very crude compared with a modern headlight and the flutted lens is to give a glow rather than a beam. Any modern light is focused on the filerment of the lamp like a mag light can be focused to give a sharper beam. The JB fits and is a good solution for the price, if you are not worried about the none standard clear lens

Re: Jockeys headlamp

PostPosted: Tue Aug 30, 2016 12:41 am
by coaster
MK Monty wrote:
Warkton Tornado No.1 wrote:Has anybody tried HID with a fluted glass lens?

I was wondering just how ‘bad’ it might actually be :idea:

The alternative might be to obtain a Ø125 mm/5” glass lens from a spotlight & graft on to a Lambretta heat proof (non plastic) reflector. Does anybody know of where such an item may be acquired, please :?:

I
The standard lambretta reflector is like a coolies hat it's very crude compared with a modern headlight and the flutted lens is to give a glow rather than a beam. Any modern light is focused on the filerment of the lamp like a mag light can be focused to give a sharper beam. The JB fits and is a good solution for the price, if you are not worried about the none standard clear lens


Byron and Pride tried this a few years ago when HID kits first hit the market but the results were a very bright 'blur' that didn't project. Their conclusion was it needed a modern headlamp unit which is why I thought I'd try the JB unit with an HID when it became available.

Re: Jockeys headlamp

PostPosted: Tue Aug 30, 2016 8:51 am
by Digger
Looks quite good in my opinion.

Image

Re: Jockeys headlamp

PostPosted: Tue Aug 30, 2016 1:20 pm
by Warkton Tornado No.1
Post by Digger » Tue Aug 30, 2016 8:51 am

Looks quite good in my opinion.



I have no issue with the looks of the Jockey unit & I take on board the issue there may be with the standard Lambretta reflector being of a differing design.

However, I wouldn’t necessarily say that the reflector is the main problem, whilst the lens obviously is.

I was considering if there may be alternatives.

My reasoning is to seek a viable upgrade @ a keen price.

I think most readers might agree with that principle as I don’t see anybody knocking those that have sourced HID kits @ such good prices!

I’m just following that logic in wondering about the ‘hardware’ to get them to function.

A quick search on eBay soon reveals that Ø125mm/5” lamp units exist so their application might be feasible, if not just the lens itself...

Here is just one example for those that care to look: 142051976764

Re: Jockeys headlamp

PostPosted: Tue Aug 30, 2016 9:51 pm
by coaster
I do actualy have a pair of those but the 4" version but I don't think they would be any good for the purpose you are proposing. If you think about it, the standard set up achieves the spread of light via the reeds in the glass. Modern headlights use the multi-faceted reflector the achieve this. I think if you fitted a clear lens to a lambretta reflector, you would just end up with a spot lamp.

Re: Jockeys headlamp

PostPosted: Tue Aug 30, 2016 10:13 pm
by Tractorman
Just been out road testing in the dark, fantastic improvement on the original headlight.