Rated voltage : 12v Operating voltage: 9--16v Operating current â?¤3.5a/pcs Sound level : 110, 5db(a) Frequency : 500, 20h) 400, 20l) Diameter :80mm weight:600g Operating temperature:-4085 Lifetime: 150, 000 uses
Rated voltage : 12v Operating voltage: 9--16v Operating current â?¤3.5a/pcs Sound level : 110â±5db(a) Frequency : 420â±20, h) 350â±20, l) Diameter :75mm weight:450g Operating temperature:-40, 85 Lifetime: 100, 000 times