Philips Lighting 2G11 Twin Tube Shape CFL Bulb, 18 W, 4000K, Cool White Colour Tone

The L 4 pin fluorescent lamp is designed to replace conventional tubes in modern 600 x 600 mm modular luminaires. This Fluorescent lamp is suitable for operation on HF electronic control gear and for dimming systems.

Single-loop style
2G11 4-pin caps
Luminous Flux 2900lumens
Colour Cool White
For use with external starters and ballasts

40W and 55W lamps can only be used with high frequency control gear

Compact Fluorescent Lamps

Energy saving of typically 75-80% when compared to GLS lamps of a comparable light output
Long life, 10000 hours typically, which equates to lower maintenance costs
2-pin versions have integral starters and should only be used with switch start ballasts
4-pin versions are designed primarily for use with high frequency ballasts or in emergency lighting applications
Triphosphor coatings give good colour rendition: Ra 80 to 89
Choice of colour temperatures

Please note that some types of lamps are inter-changeable, as long
as lamps of similar characteristics are used. These are:

Philips PL-L and GE Biax L
Philips PL-S (2pin), Osram Dulux S and GE Biax S
Philips PL-S (4pin), Osram Dulux S (4pin) and GE Biax S/E
Philips PL-C (2pin), Osram Dulux D and GE Biax D
Philips PL-C (4pin), Osram Dulux D (4pin) and GE Biax D/E