| 摘要 |
An electrical weatherproof housing 11 including an electrical component 14 and a volume adjustment means 30,42 which responds to changes in the internal pressure relative to the external pressure. Such changes in pressure are likely to occur in response to temperature differences between the interior and exterior of the housing. In one arrangement the volume adjustment 10 means 42 comprises a resilient deformable membrane provided in or on the housing. Alternatively the volume adjustment means 30 may include a moveable spring biased plunger 34 that changes position in response to a change in pressure (see figure 2). The housing is suitable for LED lamps. |
