I want to import a device (for resale) that comprises the following components:
- Wall transformer (already UL listed),
- USB wire,
- LED light assembly,
- rechargeable battery (already listed).
The question is this: do I need to get a system certification (from CSA or UL) for the entire device or can I use the existing UL mark for the component that plugs into the mains (the transformer)?
I am getting contradictory information. Some are saying that only the transformer needs the UL listing while others say that the entire system needs the mark (dramatically increasing the cost, especially considering the required quarterly audits etc).
In case this matters, the battery is NOT removable and carries its own mark.