T5 Ringtube Fluorescent Lamp

Philips 16mm tube circular lamp in a choice of diameters.

Designed for high frequency ballasts.

Available in two colour temperatures: 3000ºk (warm white) and 4000ºk (cool white)

Dimensions

22w - diameter 230mm

40w - diameter 305mm

55w - diameter 305mm

2Gx13 four pin base.

• 18000 lumens
• 3000ºk (warm white) and 4000ºk (cool white)
• Part L compliant lamp
• 10,000 hour lamp

Specification
Max Wattage	22w
Width/Diameter	225mm

Availability: Normally delivered in 5-7 days

Do you know if the T5s or T9s can be used with a dimmer switch? I have seen a light with a dimmable ringtube cfl and would like to make one. Any suggestions would be much appreciated. Fluorescent lamps are dimmable - however to do this the ballast (or control gear) needs to be replaced with a dimmable ballast. These in turn require a specific type of dimmer module using either a digital signal (i.e. Dali) or 1-10v analogue dimmer. These specifics are not something that is often practical in a domestic space and therefore their use is often only found in commercial spaces. There are some free-standing fixtures i.e. floor lamps that have dimmer modules and push-to-make controls but they are not common.