2GX13 22W - 60W fluorescent ring Master TL5 Circular - Brand name PHILIPS Circular fluorescent bulbs with 16mm bulb diameter Advantages - Slim bulb with only 16mm diameter enables the development of extremely flat luminaires - High luminous efficiency of up to 83lm/W - Good colour rendering level 1B (R features - Super 80 light colours (3-band fluorescent) - Specially developed for operation with electronic ballast - Ignition-safe from -15°C to +50°C - Amalgam technology Application - Enables the design of sophisticated and compact lights - Ideally suited for use in salesrooms and offices, public areas and in safety lighting - Lamps with amalgam technology are only suitable for dimming applications to a limited extent