The T5 HF LED TUBE HE14 549 7W 840 from Osram is designed to replace traditional T5 fluorescent tubes in luminaires fitted with a high-frequency (HF) electronic ballast. It has no built-in ballast, which means it requires a compatible ballast to operate. This LED tube is specifically designed for use with HF electronic ballasts and cannot be installed directly on a 230V support without such a ballast.

Here are some of the key features of this product:

- Power: 7W
- Luminous flux: 1000 lm
- Base: G5
- Life: 50,000 hours
- Colour temperature: 4000K (cool white)
- Dimmable: No

To install this LED tube, make sure your luminaire is fitted with a compatible HF electronic ballast. You can check ballast compatibility on the LEDVANCE website.

On a medicine cabinet? I don't know the ballast but the old tube says "HE".