The waterproof level of LED lights is usually expressed by the IP (Ingress Protection) protection level standard, which consists of two numbers (such as IP65), representing dustproof and waterproof capabilities respectively. The following are common waterproof levels and their application scenarios:
Detailed explanation of waterproof level (second digit)
IPX0
No waterproof, only suitable for dry environments.
IPX1/IPX2
Proof of vertical dripping (IPX1) or 15° dripping (IPX2), suitable for indoor low humidity environments.
IPX3/IPX4
Proof of water (IPX3: vertical 60° water spray; IPX4: water splashing in any direction), suitable for outdoor balconies, awnings, etc.
IPX5/IPX6
Proof of water jets (IPX5: 6.3mm nozzle spray; IPX6: 12.5mm nozzle strong spray), suitable for gardens, car washes, etc.
IPX7
Short-term immersion (1 meter water depth, no water ingress within 30 minutes), can be used for temporary immersion scenes (such as fountains, fish tank lights).
IPX8
Continuous diving (exceeding IPX7, the water depth and time are specified by the manufacturer), suitable for underwater lamps (such as swimming pool lights).
IPX9K
Proof of high temperature and high pressure water spray (80℃ hot water, 10-100Bar pressure), used in industrial clean environments.
Common application scenarios
IP20: Indoor dry environment (such as living room, bedroom).
IP44/IP54: Bathroom, kitchen (splashproof).
IP65/IP66: Outdoor courtyard, building exterior wall (rainproof).
IP67/IP68: Underwater lighting, landscape pool, swimming pool.
Notes
Combination of dustproof and waterproof: The full IP rating contains two digits (such as IP68), if the first digit is omitted, it is replaced by X (such as IPX7).
Installation method: Even with a high waterproof rating, it must be installed correctly (such as sealing rubber rings and waterproof joints).
Standard differences: Different countries may add other certifications (such as UL, CE).
When choosing, the waterproof rating must be matched according to the actual environmental requirements. It is recommended to be at least IP65 for outdoor or humid environments. you can know more IP66 ,IP68 LED lamp on https://www.benweilight.com





