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TRAVEL INFORMATION

ALL 2 CELL POWER BANKS ARE 26 WATT HOURS (WH)

HIGH CAPACITY 4 CELL (BLUE LABEL)  ARE 52

HIGH DISCHARGE 4 CELL (SAR, RED LABEL) ARE 38.5

POWER BANKS ARE ELECTRONIC DEVICES WHICH CONTAIN LITHIUM BATTERIES, THEY ARE NOT JUST "BATTERIES"

We are not responsible for any travel restrictions that may be in force at any particular country.

 

Current Stock Levels at  16/10/2017
Dragon D1800 In stock  
Lynx X_Basic In stock  
Lynx X2000 Temp sold out.  
Lynx X6000 Discontinued  
Lynx SAR2 One only Slightly used.
 

Currently awaiting delivery of some X2000 components.

 

Jargon Buster

Watt's a lumen?

To understand the lamps you need to understand some common terms. Amps are the measure of electrical current that flows through a circuit of part of it. The now obsolete Oldham lead acid caplamp bulb runs at 1 amp. Volts technically defined as potential difference or electromotive force can be equated to pressure like the pressure of water in a tap. Turn on the tap the pressure drops and you have a current. Watts* are units of power and are arrived at by multiplying the amperage by the voltage. The standard Oldham caplamp has a 1 amp bulb and the battery is rated at 4 volts, so its classed as 4 watts.

(* Defined as a duration of energy equal to 1 joule for 1 second)

Lumens are units of light that are actually produced at source, and should not be confused with Lux which is a measure of light falling on a specific area at a specific distance. The Oldham lead acid caplamp produced 48 lumens of light for a consumption of 4 watts. LEDs produce a lot more light, a Cree XML2-U2 will produce approx 3 times this at 1 watt.

A 220volt 100 watt light bulb produces about 1000 lumens, this is the league we are in with my lamps.

However, lumens do not tell the whole story, second to this in importance are the optics, its no good having a powerful LED if half the light goes to waste. This explains why you will sometimes see a lamp rated at say 500 lumens beat one rated at 600 lumens.

The relationship between lux and lumens is fully dependant on the way that the light output of the LED is managed, this a bare emitter could have a very high output expressed in lumens, but would have a very low lux, equally a miners lamp such as an Oldham DL 16 will have a very high lux for its relatively low lumen of 90 lumens. This is because all of the light generated is focused into a very tight beam.

So if we widen the beam say by 100%, in order to maintain the lux rating and therefore the throw, we would have to increase the output of the LED by 100% to 180 lumens.

 


 

We have a wide range of caplamps suitable for caving and mine exploring, ranging from the lightest currently available to most powerful. Expensive? well not in the sense of some on the market. Our most popular lamp is the Dragon D1800 which weighs in at only a mere 125 grams. Our Lynx X6000 produces on full power 6000 lumens which makes it one of the most powerful mining and caving lamps available to purchase in the world. Our X2000 produces over 2000 lumens of beam or floodlight power. Beware competitors which quote total output as a mix of beam and bare emitter.

All the lamps share some common features:

#1 At least 2 independent circuits.

#2 Power packs are solid cased and based on Lithium Ion (Li Ion) technology. They are waterproof, blow resistant, explosion proof, and economically priced, and can be carried as a spare and changed underground without fiddling with loose cells or inserts. All power packs can be, and indeed its recommended, 'top up' charged. They cannot be overcharged. They contain the very best available genuine Sanyo/Panasonic cells.

#3 All lamps now carry a back up circuit independent of the main electronics, this is incorporated into the beams. 8 and 12volt series lamps have additional pilot lights.

#4 All lamps are waterproof @ 30 minutes at 1 m water column; IP 67 and have no silly pointless flashy modes

The same toggle switch is universal on all of my lamps. Very high quality: here is the data sheet :

knitterswitch.pdf

Post and Packing.

All shipping is by Royal Mail insured Special Delivery which ensures that the lamps will arrive at your home the very next day. We do not accept any money unless we have the goods ready to ship.

See what our customers are saying about our lamps:

What they are saying


Mounting

No helmets are currently manufactured with lamp brackets. My aluminium lamps are designed with a 40mm spacing between holes so as to duplicate the fixing for the Petzl bracket. If your helmet has one of these simply drill out the rivets to fit your lamp. The bracket can be refitted if desired using our stainless steel screws.

If you need a bracket for one of our now discontinued Oldham based lamps or someone else's, these links are useful.

http://www.caving-supplies.co.uk/cgi-bin/psProdDet.cgi/13298%7C%7C~@c~Helmets~@b%7C0%7Cuser%7C1,0,0,1%7C16

 http://www.caving-supplies.co.uk/cgi-bin/psProdDet.cgi/13302%7C%7C~@c~Helmets~@b%7C0%7Cuser%7C1,0,0,1%7C16

 


Our Mainstream Lamps

All in high grade aluminium.


The Dragon D1800

The 'over and under' design is optimum for weight saving.

Dimensions

Dragon: 30mm X 40mm, length 55mm excluding bracket.

Weight 120 grams

Lightweight bat cooker!

D1800 Max output over 1800 lumens. Standard output of 250 lumens for over 16 hours! 

The Dragon D1800

Weight 125 grams

Price 150 plus P and P total 158

The price of lamps complete with compact 185 gram power pack and charger makes them the cheapest aluminium specialised caving lamp that meets underground standards available.

 

 


The Lynx

The Lynx X_Basic

Max 1400 lumens  - weight 200 grams  The Lynx X_Basic

200 lumens walk mode, plus middle  mode or max of 1400 lumens. Wide beam.

Green/amber/red/flashing red battery indicator. 10 mode option switching.

The price is 95 with 2 cell Li Ion helmet mount power pack, dedicated charger, and helmet fixing cord. Add 5 P and P, total 100.00

 

The Lynx X2000

 Max 2000 lumens -  High voltage - weight 200 grams The Lynx X2000

185 with 4 cell 'Flat pack red band' Li Ion helmet mount power pack, (Max output 2200 lumens) dedicated charger, and helmet fixing cord. Add 10 P and P, total 195.00

 

The Lynx SAR2

One only slightly used.

275 plus postage, total 285

 

The Lynx X6000 and SAR2: Discontinued, both to be replaced by new model following advancements in technology.

 


Our Guarantee

All lamps are guaranteed for 12 months from date of purchase. Refunds of postage will be included in certain cases. Lamps are described as waterproof, but not suitable for diving. This does not affect your statutory rights.


Post and Packing Policy and Charges

Oldham conversions and X_Basic are First Class Signed For, and cost is 5  All other lamps are Special Delivery insured because of the value. 

 

 

Ordering a lamp

Check stock level at bottom of this page, if "no stock" please check availability.

Subject to this, its dead simple. We do not require you to open an account, create a username and password, give us your phone number so that you can receive unwanted calls from our 'carefully selected partners', or attempt to take control of your computer. You just send us the money, we send you the lamp. Just like in the good old days.

Amount plus postage to:

R.A.Fellows.

 Greengables

        Stafford Road.

         Great Wyrley

    Walsall

            WS6 6AX

 

Cheques to R.A.Fellows please. DO NOT SEND CASH THROUGH THE POST. BACS payments welcome, account details on request.

 

Please enquire by ordinary email.

 

Shipping address required in writing to avoid errors.

Sorry we do not reply to emails where doing so enters us into a contractual agreement with third parties or requires us to pay for the privilege.

 

WE NO LONGER SHIP OVERSEAS.

 

roy@royfellows.uk

 

 

 

 

 

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r the power packs.