... the weight of whole light is lighter.Mean Well led driver UL listed, IP65 waterproof and anti-dust, Class I ... outside of the light, the heat produced by led driver can be output directly into air, it makes the ... lifetime of the led driver longer.3 Units 40Watt COB TOP LED (Bridgelux 45mil) ... *56*34.5cm Newest Fin Aluminum External MeanWell Driver 3Units COB LED 120W High Bay Light