Many out there, seem many with condensation stuck in behind them.
Cheap ones generally don't have the Parker and indicator light separated in the light and when the indicator comes on its weak in low brightness. Cheap ones generally get condensation in them.
Friends have had the ones from Ben mr2 uk, two styles depending on the look you are looking for. Pay for a reputable supplier is my tip, better to buy once than twice.
Another option is getting some original Japanese clear/white, revitalising the standard clear/white with some 600 grit paper and scratch x buff. Looks better depending on your paint colour, but it's all personal preference.