yesterday, i was quoted 2 prices for DL:

1. rm12 for a 4" dl full package with 18w bulb brand YSE. 1 year warranty
2. rm 10 for a 4" dl full package with 20w bulb. unknown brand. 6 month warranty

but the salesgirl also said that if i want dl below rm10, she also have. im confused. actually what criteria u need to look for?