Smart Superflash 1/2 Watt Rear LED Light – Fix intermittent and Dim Lights

Push switch is mounted too close to the case, this will need gently bending to move it inwards.

Tools required
Long nose pliers
Stanley Knife
2d or 2p to open the case
Drinks can, or suitably small thin washers
Cut a small chip from the top of a drinks can, you need to size this to fit behind the batteries positive contact to force it forward towards the battery.

You’ll need to use the knife to move the contact forward to give you space.

Here I used a chip from the can
Here I used a washer, but I only had the one…

Next you’re going to need to close up the gaps a little and use the pliers to crimp the battery terminals a little tighter to give the +ve terminal a bit of room to make contact without binding on the case

The switch will need gently bending to move it over just enough to stop it automatically triggering on the case.

Leave a Comment

You must be logged in to post a comment.


While many of our customers delight in spending a weekend diligently tweaking, overhauling or repairing their bicycles, many riders do not have the time, the tools or the inclination to do it themselves. If this sounds like you, why not pop your bike into the shop for a free safety checkover so we can discuss your service requirements.

Free safety check-over and estimate

Any type or make of cycle

Handbuilt wheels

Fast, reliable repairs


Search a huge collection of new and used bikes, accessories, components, clothes and safety equipment.