Has anyone done a decent test on LED bulbs?

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Some year ago I bought a GEC Nighthawk LED head lamp assy. It was expensive but really good. I am looking at fitting a bulb into an H4 semi-sealed beam, for use inside a headlamp on a vintage bike. The ones I have seen have been useless compared to the Nighthawk. Focus all over the place and not legal. Has anyone done a proper test using a lightboard or whatever modern machine used for testing headlamps like they use in the testing stations over here.
You need to not only see where you are going, but not blind oncoming traffic while doing so.

I still use a 55-60 halogen on my 750 inside the H4 light. Its bloody good but does draw up to 5 amps when its on.
Dereck
 
I did some comparisons here:


And here (note Cyclops not suitable for stock systems):

 
Led,s
Go with Paul Goff. His led lights are excellent as they replicate the bulb filament position exactly and the light is like Daylight at night.

ELLIS
 
As far as I know retro fitting led headlight bulbs is illegal in the UK
Not that it stopped me
 
I should have posted this yesterday.

I was looking at the sealed beam review videos last year, and because of them I liked the Holley RetroBright and so I bought one of those. I was going to put it on before the rally, but since I went overseas instead so I have procrastinated. I have been meaning to get that done since daylight savings end and take some pics to compare the Goffy Daylighter, standard halogen and then the Holley for people to see. I need to shake a stick on that.

 

Been using this on a 1978 Gold Wing. Great light and will fit in a Norton 7" headlight rim/housing. Since my Norton doesn't really get used at night plus there is no provision for a pilot bulb I never installed one.

Disclaimer:
I am also not sure if it will work with a positive earth. I have relays and a direct hook-up to the battery so it tested well my +earth bike. Never did the complete install and test ride though.

There have been a lot of changes with the retro-fit H-4/LED conversions and some seem to work pretty well. But if you really want a properly functioning light for night time use IMHO the sealed beam LED is the ticket.
 
Looks to me like you cant trust the replacement bulb in an J4 headlamp, unless you pay mega dollars. .

Fast Freddie, you don't appear to have tested your replacement bulbs on the open road at night to let us know how good that are, or whether they blind oncoming motorists when they are on dip beam [ unless I missed something somewhere. ]

Baz, I went into Repco today to enquire about information on LD head lamp bulbs and was told they were illegal in NZ. That's probably because most are just crap.

Ellis, are you saying those lights are really good at night, and don't blind oncoming motorist when on dip beam.

In the second video above, the talk is about having the LED being the same shape and position as the original halogen lamp bulbs, which is what Ellis is mentioning above..

Someone mentioned that the leads are one sided so only reflect off half the reflector in the semi sealed headlamp. In answer to that, My Nighthawk has both beams working on full beam, and that seems to cover that argument. It is a good light in the sense of being really bright and with a magnificent display pattern, but not quite enough illumination to the sides, or is that just because the light is so bright, that my old eyes don't have the power to see the edges of the road.

Dave, that third video concentrates of full LED headlamp assemblies. I guess they are saying they are better [ specifically ] designed than the replacement LED bulbs that are available.

Deets55. Seams you are going down the same road. Specifically recommending the specially made LED assemblies. That's why I originally went with the GEC Nighthawk many years ago. Also, I could not get anyone to tell me if the Nighthawk was only for negative earth, so I insulated it and ran it as negative earth. I think most equipment made now days has a bridge rectifier as part of its wiring, so can be used positive or negative earth. The cheaper LED light bulbs are probably only for negative earth. [ I know, because mt first one failed while I was stuffing are testing it. The second one I fitted the other day to replace one of the other ones and it turned out to be red. F.F.S

L.A.B. thanks for that. Maybe that's why my 850 always passes the NZ WOF without a problem.
Does anyone else have any good comments about what they have found to be good. I do notice, no-one has mentioned the prices of these things. My Nighthawk cost about $250.00 NZ about 8 years or so ago.
Dereck

PS. Dont buy anything like his of Ali express. The Chinese just sell crap and you cant trust the buggers when it comes to guarantee. Mind you, outfit like Trademe and Ebay dont care AND DONT GIVE A F..K WHETHER YOU GET A GOOD DEAL OR NOT. THEY ARE JUST THERE TO CLICK THE TICKET AS IT PASSES THROUGH.
 
Looks to me like you cant trust the replacement bulb in an J4 headlamp, unless you pay mega dollars. .

Fast Freddie, you don't appear to have tested your replacement bulbs on the open road at night to let us know how good that are, or whether they blind oncoming motorists when they are on dip beam [ unless I missed something somewhere. ]

Baz, I went into Repco today to enquire about information on LD head lamp bulbs and was told they were illegal in NZ. That's probably because most are just crap.

Ellis, are you saying those lights are really good at night, and don't blind oncoming motorist when on dip beam.

In the second video above, the talk is about having the LED being the same shape and position as the original halogen lamp bulbs, which is what Ellis is mentioning above..

Someone mentioned that the leads are one sided so only reflect off half the reflector in the semi sealed headlamp. In answer to that, My Nighthawk has both beams working on full beam, and that seems to cover that argument. It is a good light in the sense of being really bright and with a magnificent display pattern, but not quite enough illumination to the sides, or is that just because the light is so bright, that my old eyes don't have the power to see the edges of the road.

Dave, that third video concentrates of full LED headlamp assemblies. I guess they are saying they are better [ specifically ] designed than the replacement LED bulbs that are available.

Deets55. Seams you are going down the same road. Specifically recommending the specially made LED assemblies. That's why I originally went with the GEC Nighthawk many years ago. Also, I could not get anyone to tell me if the Nighthawk was only for negative earth, so I insulated it and ran it as negative earth. I think most equipment made now days has a bridge rectifier as part of its wiring, so can be used positive or negative earth. The cheaper LED light bulbs are probably only for negative earth. [ I know, because mt first one failed while I was stuffing are testing it. The second one I fitted the other day to replace one of the other ones and it turned out to be red. F.F.S

L.A.B. thanks for that. Maybe that's why my 850 always passes the NZ WOF without a problem.
Does anyone else have any good comments about what they have found to be good. I do notice, no-one has mentioned the prices of these things. My Nighthawk cost about $250.00 NZ about 8 years or so ago.
Dereck

PS. Dont buy anything like his of Ali express. The Chinese just sell crap and you cant trust the buggers when it comes to guarantee. Mind you, outfit like Trademe and Ebay dont care AND DONT GIVE A F..K WHETHER YOU GET A GOOD DEAL OR NOT. THEY ARE JUST THERE TO CLICK THE TICKET AS IT PASSES THROUGH.
I have now tested them at night.

No issues with dazzling other motorists when on dipped beam.

Definitely better overall visibility at night when compared to halogen.

Definitely a vast improvement in daytime visibility to others.

I use the Cylops in my T140 cos it’s Neg earth. I use Gof 5k in my Pos earth old bangers.
 
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Looks to me like you cant trust the replacement bulb in an J4 headlamp, unless you pay mega dollars. .

Fast Freddie, you don't appear to have tested your replacement bulbs on the open road at night to let us know how good that are, or whether they blind oncoming motorists when they are on dip beam [ unless I missed something somewhere. ]

Baz, I went into Repco today to enquire about information on LD head lamp bulbs and was told they were illegal in NZ. That's probably because most are just crap.

Ellis, are you saying those lights are really good at night, and don't blind oncoming motorist when on dip beam.

In the second video above, the talk is about having the LED being the same shape and position as the original halogen lamp bulbs, which is what Ellis is mentioning above..

Someone mentioned that the leads are one sided so only reflect off half the reflector in the semi sealed headlamp. In answer to that, My Nighthawk has both beams working on full beam, and that seems to cover that argument. It is a good light in the sense of being really bright and with a magnificent display pattern, but not quite enough illumination to the sides, or is that just because the light is so bright, that my old eyes don't have the power to see the edges of the road.

Dave, that third video concentrates of full LED headlamp assemblies. I guess they are saying they are better [ specifically ] designed than the replacement LED bulbs that are available.

Deets55. Seams you are going down the same road. Specifically recommending the specially made LED assemblies. That's why I originally went with the GEC Nighthawk many years ago. Also, I could not get anyone to tell me if the Nighthawk was only for negative earth, so I insulated it and ran it as negative earth. I think most equipment made now days has a bridge rectifier as part of its wiring, so can be used positive or negative earth. The cheaper LED light bulbs are probably only for negative earth. [ I know, because mt first one failed while I was stuffing are testing it. The second one I fitted the other day to replace one of the other ones and it turned out to be red. F.F.S

L.A.B. thanks for that. Maybe that's why my 850 always passes the NZ WOF without a problem.
Does anyone else have any good comments about what they have found to be good. I do notice, no-one has mentioned the prices of these things. My Nighthawk cost about $250.00 NZ about 8 years or so ago.
Dereck

PS. Dont buy anything like his of Ali express. The Chinese just sell crap and you cant trust the buggers when it comes to guarantee. Mind you, outfit like Trademe and Ebay dont care AND DONT GIVE A F..K WHETHER YOU GET A GOOD DEAL OR NOT. THEY ARE JUST THERE TO CLICK THE TICKET AS IT PASSES THROUGH.
So KeriFnorton.. wot's the one sentence summary of that emotional outburst?
Did you get what you wanted or are you (still) confused?
Cheers
 
Thanks for all the positive feed back. I had trouble finding the Paul Goff LED's on the internet so David came to the rescue.

I emailed last night with the question and Paul got back to me within a very short time. I ordered 2 lights straight away, and hope to see them in a month or so. Freight from the UK to NZ has taken some time lately [ up to 2 months or more. ]

Why 2 lights. Well, my 100 year old project has 2 lights at the front. Obviously not a Commando.
 
Derek, I use a Cyclops 3800 LED in my Commando , they are legal for a WoF and a very good night light.
They are used in Suzuki DR's , I got mine out of Oz from an adventure bike outfit.
Quick and easy to fit , swap out bayonet fitting for a H4 and you are good to go
regards Mike
 
Hi Mike, I had a lot of trouble trying to find those LED's on the internet and Dave helped me with the one he got.

Dereck
 
Hi Shane. My GEC Nighthawk is far better that that one. Look at the shadows in the dipped beam. I dont get tha, and also, it uns both beams on high.
 
Hi Shane. My GEC Nighthawk is far better that that one. Look at the shadows in the dipped beam. I dont get tha, and also, it uns both beams on high.
Just found a GE Nighthawk bulb & light options but when I searched for GEC i got more about Honda Nighthawk etc ....is this what you got ?
OR....


 
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As far as I know retro fitting led headlight bulbs is illegal in the UK
Not that it stopped me
Yes vehicles registered after a certain date in UK have to have type approved bulbs fitted, the date is 1986 as that is when the type approval law was introduced so it does not apply to old clunkers. Yah !!
 
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Derek, I use a Cyclops 3800 LED in my Commando , they are legal for a WoF and a very good night light.
They are used in Suzuki DR's , I got mine out of Oz from an adventure bike outfit.
Quick and easy to fit , swap out bayonet fitting for a H4 and you are good to go
regards Mike
Good to hear that they are legal Mike, i have one as well (probably same source) but hadn't been confident to have it fitted for WoF checks.
 
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