求翻译：1. LED路灯、隧道灯,洗墙灯 电源产品要求达到IP65等级（防水、防尘），全封闭的环境，使灯具内部无法与外部环境进行气体交换。是什么意思？

LED street lamps, tunnel lamps, wall washer power products required to achieve ip65 rating (waterproof, dust-proof), fully enclosed environment, so that inside the lamp can not be carried out with the external environment on gas exchange.

. * 1 LED lights, tunnel wall wash light, light power products required to achieve 65 IP rating (water-resistant, dust) and enclosed environment, the lamps with the external environment within gas exchange.

1. The LED street light, the tunnel lamp, washes the wall lamp power source product to request to achieve IP65 rank (waterproofing, dustproof), the entire seal environment, causes the lamps and lanterns interior to be unable with the external environment to carry on the exchange of gases.

1. LED lighting, tunnel lighting, wall washing light power product requirements up to IP65 rating (waterproof, dustproof), fully-enclosed environment, made it impossible for lamps and internal gas exchange with the external environment.

potential problems: water-resistant, pressure reduction solutions, and how it works;