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SL-700 (for Sunlight SL4) > Q-350 (for UK mini Q40) > T-350 (for PT Tec-40) > PT-A (for PT Attitude) >  

Q-350 (v2) Module 


Retrofit LED module for UK (Underwater Kinetics) Mini Q40 dive lights


(often used by cavers as back-up lights)


Highest efficiency Cree XP-G2 s3 LED, 5500k providing 150+ lumen   


Sensible power setting, providing excellent balance between light output and battery duration


Sustainable 350mA regulated driver circuit


Real spot optic 


Long, slow death once cells cannot sustain regulated current 


Better performance than the latest LED incarnation of the UK Mini Q40, the Mini eLED plus (67 lumen)


NiMh or Alkaline (6v max.) 


Easy fitting, just 'flip in' and go 




Note - you will require the brass collar from the original Underwater Kinetics Xenon Module to fit and use the Customduo Q350 (v2) LED conversion module  





Q350 (v2) Fitting

The Q350 (v2) now utilises the brass collar from the old xenon module (that is being removed and replaced - see photo below), providing better connectivity and operation. The only down side to this is that anyone who has discarded the old UK xenon module won't be able to upgrade.

The brass collar can be seen on the original xenon module in photo above (the one right at the back). The second module back is also an original xenon module, but with the collar removed, and subsequently fitted to Customduo Q350 module (the one at the front). The brass collar is easily extracted from old xenon module, easily fitted to the Q350 (v2) modules. The Q350 (v2) module requires the brass collar to function. Otherwise, fitting is as per the discontinued Q350 (v1) module, see module fitting guide

UK Mini Q40


The original mini Q40 ('the best selling dive torch on the planet') features an expensive to replace xenon bulb module, providing 38 lumens at a hefty 2.1 watts. This is the model (shown above) that can be upgraded with the Flippin Tec Q350 Module.


The latest version, the mini eLED plus runs at a quoted 2 watts (considerably more than a Fippin Tec Q-350 module), but produces just 67 lumens. The Flippin Tec module will not fit the eLED version, as it has an extended front end, when compared to the original, upgradeable UK Mini Q40 xenon.



Custom Duo Q350 (v1) now discontinued 





The Online Shop allows payment with most debit and credit cards, without the requirement for a Paypal account. Add product to cart and option is offered at checkout. Customduo also accept UK cheque or bank transfer.   


International orders welcome. We are currently shipping internationally (outside UK) at no extra postal charge. For more details please see International Delivery