Page 1 of 1
20W CDM R and Magnetic Ballasts
Posted: Sun Jul 31, 2011 8:57 pm
Following on from the topic about running these on magnetic ballasts i did try to light on straight off of a Tridonic EC18 as suggested by james. It did not light? What about adding a standard starter to the circuit?
Any ideas would be helpful!!
Re: 20W CDM R and Magnetic Ballasts
Posted: Sun Jul 31, 2011 10:25 pm
I don't know the starting voltage for the 20W lamps but the 35W ones are still around 3.5Kv so mains voltage alone is not enough to get them going. A starter switch might not do it either, I'd say just try a suitable 35W MH ignitor. An EC18 might be an okay ballast
, the current should lower cause the lamp voltage of the 20W CDM-R is a lot higher than a 20W fluorescent.
All you can do is try!
The lamp current and voltage should be around 2.15A 93V if you do get it going and can measure the current and voltage.