Little Monkey

About Us

Little Monkey caving lamps are designed, manufactured and sold by us. We also operate Customduo website. We are based in Cheddar, in the Mendip Hills, a significant UK caving region. Customduo / Little Monkey is dedicated to your total satisfaction. If you have any suggestions or comments please email us using the details on the Contact page. Full Customduo terms apply. Check our websites regularly for any updated information.

Little Monkey caving lamps

Little monkey (Filthy Edna / Rude Nora) have a standard 1 year warranty against defects in material and manufacture. If your product or accessories fails to operate to specification during the warranty period we will arrange for your product to be repaired or at our discretion replaced. This warranty is subject to reasonable wear and tear (in our opinion) and correct use and maintenance of the product as applicable. We will not provide warranty repair / replacement if the problem, in our opinion, resulted from use outside the product specification, modifications or alterations, incorrect connection, operation or fitting where applicable, external damage due to accident, impact/ abrasion, poor storage, poor maintenance, use of non approved parts, wear and tear parts (e.g. edna / Nora front window). We will always endeavour to keep any costs due to damage to an absolute minimum.


Little Monkey lamps have been designed to operate effectively in a hostile environment, i.e. caves, and be as robust / reliable / practical as possible for this purpose. As a consequence it will get battered and while we appreciate that it is entirely feasible to break things occasionally, any such damage is beyond the scope of the product warranty. Expect to pay for any damage related repairs. Battery packs in particular are sensitive and subject to damage from misuse, impact, temperature and most significantly water ingress / moisture. Although in reality fairly robust (we see very few failures), battery packs / chargers are only covered by warranty if defects in materials or manufacture can be demonstrated to our satisfaction. Edna / Nora battery packs / chargers are professionally manufactured, and as distributers we will only undertake very minor repairs to these items. E.g. we may replace a damaged connector, but will not open a charger or battery pack to exchange a moisture damaged protection circuit. Your safety is our priority. Any physical damage to battery pack wires, cable connectors and wires, is not covered by warrranty, and lamps should not be used until repaired.


Using li-ion batteries requires a level of care, and is not without risk. Do not use our products not able to accept this risk. Take special care to ensure that the lamp cable, battery box leads and battery leads are not damaged, especially when fitting batteries into battery box etc. Never use damaged batteries or battery box / holder with damaged leads. Failure to do so could present a serious safety risk and damage to batteries. Battery box /battery holder cabling is designed to be readily maintainable, and should be replaced if defective. Battery chargers will get warm in operaton. Use with appropriate care, and charge batteries in a fire safe environment and under supervision. Important - Battery polarity (marked on battery holders) must be strictly observed. Failure to do so could potentially cause short circuit and damage to batteries.

An additional note of caution if using individual unprotected li-ion batteries! We can not under emphasis the degree of care required if using unprotected batteries. Li-ion batteries store a lot of energy when fully charged, which can be released very rapidly in event of failure. Never use batteries with damaged outer sheath. Keep a careful and continuous watch on condition of the battery skin, especially close to the positive terminal. If necessary add an additional skin (battery specific heat shrink). Always use two cells in Nora battery holders to avoid short if placed in contact with conductive surface.  Take special care when fitting battery in to a battery holder, most particularly at the positive end of the battery, which is very close to the negative battery casing. Ensure that positive button of battery is properly aligned and located centrally on positive terminal of battery holder (Best practice is to orientate positve end of battery in to holder first, followed by negtive end). If battery skin is damaged and battery is not inserted fully and properly, and without due care, it is possible to effect a short circuit between the battery +ve and -ve case*. This will almost certainly result in the battery flaming / catasphopic battery failure. On a practical level, any indication of a short circuit (e.g. sparking) when inserting a battery into a holder, immediately remove battery. Failing this, then step well clear. Care of and use of unprotected batteries is entirely at your own responsibility and risk. 


(* Most likely to be an issue between the positive battery connection and the -ve batttery case, for both unprotected and protected cells. Protection circuits on protected cells, or circuits built on to our battery holders do not gaurd against a short in this area).  




Unused lamps can be returned if you notify us within 14 days of delivery. You then have a further 14 days to return. A full refund will be provided, excluding a repackaging charge of 10%, minimum £5 will be charged. If you don't think that this is fair enough then please buy elsewhere. We do not accept returns for used items. If you return a used item to us then we reserve the right to charge for lost value or return to you at your cost. 


Refunds issued for items purchased in error or otherwise will be subject to a deduction to cover Paypal fees. This is necessary because Paypal do not refund their charges to us, when we make a refund to customer. 


Caving (including associated activites) is not without risks. We would not presume to tell you how to kit up and use your equipment. What we will say is that the Little Monkey lamps (Edna / Nora) are not, and should not be considered as, Personal Protective Equipment (PPE). How you interpret any guidance that we give on the use of our products and how you use our equipment is entirely at your own risk. Caving is a rigorous activity that is harsh on equipment. Little Monkey lamps have been designed to be safe, robust and best withstand the demands of caving, while remaining practical as a tool for this purpose. This does not mean that it cannot be broken. Lights can fail without warning, and we take no responsibility for any consequence of this. Always carry a reliable and accessible independent backup light source(s) for any light crucial activity / function. Good caving practice is your own responsibility. We do not take responsibility for any accident, injury, liability or cost, to yourself or that you may cause to anyone else, or to any property. This applies to caving or any other function for which you choose to use and place reliance upon our product.

Please note that you personally assume full responsibility for the risk of property damage, bodily injury or death which may occur from the use of this product in any manor whatsoever. If you are not able, or not in a position, to assume this responsibility, or take the risk, then do not use this product. We are not responsible for the consequences (direct, indirect or accidental) or any other type of damage befalling or resulting from the use of this product. If you are not entirely comfortable with the above, then do not purchase or use any of our products.

Please ensure you have read and understood all product safety, maintenance, operation guidance and all other advice / information that we have provided on website and in Little Monkey operation manuals.  You purchase and use any of our products at your own liability.


The Courts of England and Wales shall have exclusive jurisdiction over all claims or disputes arising in relation to, out of or in connection with this Website and its use and these terms and conditions.


Company Information


Biffni Ltd (13641889)

Glebe Way, Cheddar, BS273XU, UK