The controller (5) allows the lamp (4) to be controlled, for example, to operate at a constant power (variable light output) or at a constant light output (variable power).

A method is described for driving a fluorescent lamp (L) with variable light output within a dimming range between a low dimming level and a high dimming level.

A lighting system and method with variable light intensity for use in motion picture photography.

A rear fog lamp with variable luminous intensity (F2) approved in accordance with Regulation No 38 in its original version.

when the device meets the specific requirements for category S4 stop-lamps and produces variable luminous intensity

A rear fog lamp producing variable luminous intensity (F2) approved in accordance with Regulation No 38 in its original version

A red rear position lamp with variable luminous intensity (R2) approved in accordance with the 02 series of amendments to Regulation No 7

A rear direction indicator lamp with variable luminous intensity (category 2b) approved in accordance with the 01 series of amendments to Regulation No 6

A rear fog lamp with variable luminous intensity (F2) approved in accordance with Regulation No 38 in its original version

A rear fog lamp with variable luminous intensity (F2) approved in accordance with Regulation No 38 in its original version

A rear fog lamp with variable luminous intensity (F2) approved in accordance with Regulation No 38 in its original version

4 when the device meets the specific requirements for category S4 stop-lamps and produces variable luminous intensity

A stop-lamp with variable luminous intensity (S2) approved in accordance with the 02 series of amendments to Regulation No 7.

Applications include lighting, displays (optionally isolated and dimmable), and production of ultraviolet radiation.

A rear direction indicator lamp producing variable luminous intensity (category 2b) approved in accordance with the 01 series of amendments to Regulation No 6