Tridonic
Tridonic T5 Pro High Frequency Ballast 2 x 39w Tridonic PC 2/39 T5 PRO
£22.07
https://www.bltdirect.com/ Go to shop Description
A 2 x 39 Watt T5 Pro Twin High Frequency Ballast offering an impressive 100000 life a minimum 50000 starts without the need for lamp replacement automatic restart after relamping and constant luminous flux irrespective of fluctuations in mains voltage.