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Author Fellows lamps forum.
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Posted: 31/10/2017 09:32:33
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I use an Elios with a Dragon as a work lamp.
Best helmet as we all know is Ecrin Roc but I suffer from eczema on my head and working is awkward with bigger and heavier helmet set up.

Having said this my best sellers are currently:
1/X2000
2/X_Basic
3/ Dragon

My advice is to bear in mind my comments above but talk to other people. Burn time is a product of the battery, you could use a Dragon with a 4 cell flat pack but I suspect your helmet would tilt backward, its best to balance the weight.
Dont forget my batteries will swap over underwater on Mars, no loose batty cells to fumble with. I have worked about 15 hours on one battery, but obviously only using the standard mode for working.


--

.................whole weekend and a bad back, but that life.
IP: 92.24.23.178
Praada

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Location: Tibshelf

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Posted: 31/10/2017 09:43:31
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Out of interest why did you discontinue the X6000? Was it just overkill or did it heat up too much? I like to explore the slate mines in wales which as i expect you know, the light gets sucked up by the dark surfaces, around my end in the peaks i don't require a very powerful light as the rocks are much lighter and the open spaces much smaller generally.

I see you have the X2000 ready soon, i would want the longest life battery pack, i have a cheap amazon headtorch at the moment which has a 4x18650 sealed power pack, and it doesn't pull my helmet back.

Is there much difference in brightness between the dragon and X2000? with just a 200lumen output difference i don't imagine this being that noticeable? I'm just trying to work out which is best so i'm sorry for all the questions Smile

--

"I got enough batteries to live down here indefinitely!"
IP: 87.224.25.210
royfellows

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Posted: 31/10/2017 11:39:20
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Your OK, I expect others are following this.

The X6000 was discontinued as I had a new model in my mind, and the blue belt mount battery casings being exhausted. The new model, the X7000 would use XP-Ls rather than XM-Ls for more output, and also a different reflector configuration in a slightly smaller and lighter body. This has been produced, and in stock, but 'rebranded' as the X12 due to new battery tech becoming available. This is described in this thread.

The SAR was a successful attempt, (finally!) at running a really powerful lamp off a reasonable weight helmet mount power bank instead of trailing wires which frankly belong back in the 1960s. Unfortunately, the lamp was very finicky to produce which put me off building them, and using 3 X 20700 in a helmet pack gives the same performance from the new X7000, (the X12).
The new cells open up a new world of possibilities, hence the 'rebranding', ie the "X_12 series".

Now the X_12 just like the X6000 will heat up very fast on full power, its inevitable, but how long do you want to blast 6 or 7000 lumens out for?

Finally, the X2000 will outperform the Dragon, no doubt about it. It has a very good, pure white light output with concentrated centre spot beams.
Why do you think everyone wants one?

The audience was seldom wrong, if you remember the show.

Afterthought, slate mines, forget the Dragon and go for the X2000, or spend your money and be the first to take an X_12 into the Cwm or wherever.

Dont worry about being caught in the ferren, by time they get their eyesight back you be gone
Laugh


--

.................whole weekend and a bad back, but that life.
IP: 92.24.23.178 Edited: 31/10/2017 11:43:16 by royfellows
Praada

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Posted: 31/10/2017 11:49:37
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Go on then tempt me with the new one and i'll be the first :D whats the damage to my wallet? I've got it waiting to spend :D

--

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Praada

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Posted: 31/10/2017 11:59:29
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Just found it on the website, don't think the mrs would approve me spending that sort of money, but you've seriously made me want it hahaha, I will try to do some sweet talking later and maybe play it off as a key life saving tool as she already worries everytime i go underground haha!

--

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IP: 87.224.25.210
royfellows

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Posted: 31/10/2017 18:53:07
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A couple of other things.

I can offer lamps pre fitted to good condition second hand (ex outdoor centre) red Ecrin Roc helmets for extra £40.
Limited number, and of course I will keep one for myself as a spare. Never been underground or fitted with a lamp.

The other is the Scorpion. I have tool room prototype serial number 1 (yes, they serial numbered) in bits experimenting with the configurations etc.

One assembled I will use myself initially and then pass it on to a diver to assess failure depth, if there is one.

Two models are planned:
X_12 - 3 series LEDs, 2 behind spot reflectors (same as X2000) plus a bare one all running together. Standard at about 2 to 300 lumens, max at 3300, pilot or low beam alternative.

X_8 - 2 serial X 2 parallel same as current X2000.

No plans to discontinue Lynx as many will prefer traditional bright finished look.

Prices about the same, why not? £200 or less depending on cost and labour.

Lead time, bad news as wont be well until into next year at very least.
Confidence high, just ordered a large batch of components.

Will be able to offer full range of GpPro accessories, parallel Hero, cycle tripod and whaterver mounts, plus possible video lights to IP68 same as caplamp. Choice of helmet mounts, curved or flat for high flat front Centurion type.



--

Fellows lamp: Dont worry about being caught in *******, by time they get their eyesight back you be gone
IP: 92.24.23.178
Boy Engineer

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Posted: 31/10/2017 22:34:51
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Dont worry about being caught in *******, by time they get their eyesight back you be gone

Do the asterisks represent "flagrante delicto" or a proscribed geographical location? Not that they are mutually exclusive, in a sense.
IP: 95.145.215.165
royfellows

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Posted: 01/11/2017 08:39:53
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In retrospect, it could cover a lot of locations and explains why my lamps sell well in Cornwall.
Laugh

--

Fellows lamp: Dont worry about being caught in *******, by time they get their eyesight back you be gone
IP: 92.24.23.178
Praada

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Posted: 01/11/2017 09:27:14
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I'm seriously umming and arring about the X2000 or wait until you've got the new ones made next year, i feel like i want to nominate myself as a guinea pig tester for your lamps haha! The mrs won't let me buy the 7000lumen lamp this close to christmas so i think i will buy the x2000 for now and then test out your new ones when they hit the market next year Smile Can you PM me with the details i need to send payment and i will reply with delivery information etc Smile Can you confirm the amp power needed to sufficiently charge it with a power inverted plugged into the cigarette charger? Would a smaller inverter be enough as i am also about to purchase one on amazon but i'm holding off until i know the power requirements, it will be running my phone charger and the charger for my head torch when we go away for weekend trips into snowdonia national park Smile

--

"I got enough batteries to live down here indefinitely!"
IP: 87.224.25.210
royfellows

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Posted: 01/11/2017 11:06:27
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Watts out on charge will be 8.4V X 1 amp (max charging rate)= 8.4 watts
Before anyone jumps on me I am aware that as charging nears completion the current is going to be down to a few milliamps, I am using this as an 'impossible scenario'.

Assuming, again to daft lengths, charger is only 50% efficient, and therefore pulling 16 watts, at input voltage of 220V current will be less than 0.01 amps.

Looking at cheapest inverters they appear to be giving 0.5 amps at the mains voltage output, this should answer your question.

I bought a 1200 watt Shocked inverter off eBay for about £25!

Purchasing a lamp

As my system runs on the Greengables LAN not aditnow, all purchases should come it from roy@royfellows.uk

I cant handle sales through website PMs, please everyone be aware. In the past I have send purchase info to "no reply's" as I am handling emails in bulk.

--

Fellows lamp: Dont worry about being caught in *******, by time they get their eyesight back you be gone
IP: 92.24.23.178
royfellows

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Posted: 14/11/2017 16:49:42
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Advices

Lamps are hectic.

New X_12s out of stock and awaiting a batch of components, X_Basic all gone and it will be a week or so at least before more available.

I have Dragons and the all popular X2000 in stock, but limited on stock of 2 cell power bank cases. 4 cell for X2000 is no problem.

May have the first Scorpion ready for New Year as I am putting the IP68 50 metres on hold and will be producing IP68 5 metres as a standard, for time being.

Awaiting parts to finish SN1 and will upload photos when completed for your verdicts.

--

Fellows lamp: Dont worry about being caught in *******, by time they get their eyesight back you be gone
IP: 92.24.23.178
royfellows

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Posted: 27/11/2017 13:12:20
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Scorpion latest

Got the prototype assembled but with a front glass held on with sticky tape, and tested it underground.

Big time delay as I have been waiting for over a month for a batch of glass lenses and need to get exact dimensions before I can order the face plates to be made.

Choice was aluminium front panel with circular window and glass direct bonded as per car windscreen, or a complete front of 'glass' as per Scurrion and its clones.
Issue with the latter is that the front of these lamps isn't glass but polycarbonate which is stronger and lighter and also easily machined, but scuffs and scratches easily despite most of the lamps that use it having an abrasion resistant coating.
So I went with the first option, bonded glass.

Anyway, the lamp runs at input voltage of about 12 volts with emitters wired 3 in series to match, 2 behind reflectors, the third bare. So light is split 3 ways with 2/3 going to the beams.
Also there are 2 sets of these, a high range, and a low range with circuit memory so you can easily flick between 2 pre-selected brightness settings.

Low range in lumen output is 40 (moonlight mode), 75, and 160. High range is 300, 1000, and 3500.

The 2 upper range reflectors are same as X2000 and notable for the 'crisp' lighting affect. I am using best features from existing lamps.

The lower range uses 2 Ledil optics same as pilot on big bat cookers, these are notably good for their size.

Here is a rear picture, see what you think:



(click image to open full size image in new window)

I am on a limit with the new Lynx X_12 as I have only a number of the headsets in stock and no more available. So it may be end of the big bat cookers. The Lynx uses Chinese die castings intended for underwater floodlamps, but re machined here at Great Wyrley. I am absolutely honest about everything and still sell lamps as fast as I can produce them. I leave sales BS to others, not my shop.

Basic and X2000 unaffected as they use a lighter casting with shallow fins that's in plentiful supply

The Scorpion is based on a main body made in Scunthorpe so hopefully continuity of supply.

--

..................a proper engineer not a marketing man.
IP: 92.24.23.178 Edited: 27/11/2017 13:15:18 by royfellows
Morlock

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Posted: 27/11/2017 22:31:02
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Nice looking bit of kit. IP: 86.183.190.138
royfellows

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Posted: 27/11/2017 22:34:56
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Morlock wrote:

Nice looking bit of kit.


Thanks
Its very user friendly, not in least way 'fumbly'
If successful, it may form the mainstream with other models to follow.

--

..................a proper engineer not a marketing man.
IP: 92.24.23.178
Roy Morton

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Joined: 09/10/2007
Location: Redruth Cornwall

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Posted: 28/11/2017 00:43:46
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Very nice Roy. Development has come a long way from the original Workstar, which by the way, is still a good lamp.
Thumbs UpThumbs UpThumbs Up

By the way....did your signature quote come from AvE by any chance?

--

"You Chinese think of everything!" "But I''m not Chinese!" "Then you must have forgotten something!"
IP: 86.152.85.38
royfellows

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Posted: 28/11/2017 08:55:07
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Roy Morton wrote:



By the way....did your signature quote come from AvE by any chance?


AvE ?

It came from a gentleman on UK Caving and neatly sums up one of my pet hates.

I expect though, that marketing and salesmanship is a skill like any other and that some people are quite good at it.

I was thinking about it, like selling a box of matches for a fiver.

"I know you can buy them cheaper from Supermarkets, but dont expect them to be as good as ours"

"Our matches will strike under water" How useful.

--

..................a proper engineer not a marketing man.
IP: 92.24.23.178
gNick

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Posted: 28/11/2017 10:20:32
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royfellows wrote:


Choice was aluminium front panel with circular window and glass direct bonded as per car windscreen, or a complete front of 'glass' as per Scurrion and its clones.
Issue with the latter is that the front of these lamps isn't glass but polycarbonate which is stronger and lighter and also easily machined, but scuffs and scratches easily despite most of the lamps that use it having an abrasion resistant coating.


I don't want to be too picky Roy but the Scurion glass front is your actual glass (with a scratch resistant coating as well) not polycarbonate.
The Phaethon apparently is Plexiglas which is acrylic (aka Perspex) which is even more prone to scratching than polycarbonate.

--

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IP: 31.161.12.80
royfellows

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Posted: 28/11/2017 11:59:21
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gNick wrote:

royfellows wrote:


Choice was aluminium front panel with circular window and glass direct bonded as per car windscreen, or a complete front of 'glass' as per Scurrion and its clones.
Issue with the latter is that the front of these lamps isn't glass but polycarbonate which is stronger and lighter and also easily machined, but scuffs and scratches easily despite most of the lamps that use it having an abrasion resistant coating.


I don't want to be too picky Roy but the Scurion glass front is your actual glass (with a scratch resistant coating as well) not polycarbonate.
The Phaethon apparently is Plexiglas which is acrylic (aka Perspex) which is even more prone to scratching than polycarbonate.



Can you please give the source of this information.
I am perplexed somewhat by glass having a scratch resistant coating as its extremely hard as it is.

https://www.tedpella.com/company_html/hardness.htm

The door is open to a redesign of my Scorpion front.

Your not being picky, feedback etc is what I am after and what I use as a springboard for new design.

E.g. "Your lamps are far too bright"
Presumably standard mode, the lowest setting. So I come up with the lower range on the Scorpion.

One conclusion I have come to is that IP67 (1 metre submersion) is inadequate for extreme caving.

The Scurrion is a fine lamp, as are the Phaethon, Pulsar, and El Speleo. Its a shame that Mr Biff is no longer producing the Rude Nora. Its seems that sharp marketing is eclipsing quality.

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..................a proper engineer not a marketing man.
IP: 92.24.23.178
SimonRL

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Posted: 28/11/2017 12:04:32
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royfellows wrote:

Its a shame that Mr Biff is no longer producing the Rude Nora.


His web site says Nora 3 is in development?

--

my orders are to sit here and watch the world go by
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Roy Morton

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Posted: 28/11/2017 12:22:49
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Glass hardness relies entirely on the quality and the purpose for which it's used.
Camera lenses are one of the softest glasses, as most optical glass is. Float glass is reasonably hard but brittle. Car windscreens on the other hand need to be somewhat flexible, and as a result are relatively soft and will scratch and chip easily.
In short, glass hardness can't be considered a constant.

--

"You Chinese think of everything!" "But I''m not Chinese!" "Then you must have forgotten something!"
IP: 86.152.85.38
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