My DAB has never worked properly since installing them and one of little upright bits of the DLRs has stopped working back in October I think and even though they promised to send me a new light they never have and are now ignoring my messages on Ebay... proper pissed off with them, just get fobbed off until the warranty runs out I guess.
Am happy enough with the main light output but it's a bit of a worry to think if one of the main bulbs goes they're ready for the bin as they provide no customer service whatsoever.
Bit of a shame as they're still £500 and there's no decent alternatives to buy