Mini USB Plug In Light

A light the size of a fingertip that lives in a USB socket. It has no switch, no cable and no battery: it lights up when the port has power and goes out when it does not. Made for the sockets you already have and never use — a car dashboard port, a laptop, a power bank, a plug adapter, the back of a monitor.

Five colours, each a separate item: White, Warm White, Red, Blue and RGB. The RGB version is the one with the multi-coloured band across the top. The maker does not say whether it cycles through colours or holds one, so we will not tell you that it does either.

• Standard USB-A plug
• Voltage 5V (nominal 4.5V)
• Luminous flux under 60 lumens — this is a glow, not a reading lamp
• One light ships per order, in the colour you choose

The maker publishes no measurements and no weight. The only scale reference that exists is its own photograph of the light balanced on a fingertip, which is why we have kept that picture.

The maker's own images carry claims about brightness, workmanship and service life that come with no figures attached. We have removed those pictures rather than repeat them.