2.Polarity:Negative Earth(positive"+" at bulb tip), not suitable for positive earth system.
3.LED bulb is low power consumption,so counted by theoretical power but not actual power. Because the resistor on bulb so that actual power is much less than theoretically power
4.LED bulb has resistance so that bulb will become hot when working while it not affect its performance
5.Warranty for 12 months, replace new one at free after confirmation of our product photos from customer.
ba7s led bulb f3 12v 12 volt white minin car instrument gauges warning light lamp