1. Purpose: Fluorescent lamp, electronic ballast, electronic transformer.

2. Fluorescent lamp type led lighting device with adjustable light emitting direction

3. A 23 W spiral compact fluorescent lamp emits about 1,400–1,600 lm.

4. A ballast for providing a dimmable fluorescent lamp (42) has a potentiometer (46) connected to AC power source (10).

5. The invention relates to a method for dimming a fluorescent lamp, wherein a transformer is controlled by push-pull alternating current.

6. Without a Ballast to limit its current, a fluorescent lamp connected directly to a high voltage power source would rapidly and …

7. The current controlled dimmer generates an AC current which follows the shape of the AC line voltage for the fluorescent lamp.

8. It has the interesting property that the pink colour is much more intense under the light from a fluorescent lamp, as may be seen from the picture.

9. Annex Quinine Chemical Actinometry The following provides details of an actinometric procedure for monitoring exposure to a near UV fluorescent lamp (based on FDA/National Institute of Standards and Technology study).