**IP **(Ingress Protection) are the international standard for rating how well electronic enclosures protect against solid objects (first digit) and liquids (second digit). For LED strip suppliers on Alibaba.com, understanding these ratings is essential for matching products to buyer requirements and avoiding costly returns due to application mismatches.
The LED strip industry commonly uses three IP rating configurations: IP20 (non-waterproof, indoor dry areas only), IP65 (water-resistant, suitable for damp locations and covered outdoor areas), and IP67 (waterproof, can withstand temporary submersion and harsh outdoor conditions). Each configuration serves distinct market segments with different price points and buyer expectations.
IP20 vs IP65 vs IP67: Technical Comparison
| IP Rating | Solid Protection | Liquid Protection | Waterproof Method | Installation Method | Typical Cost Premium |
|---|---|---|---|---|---|
| IP20 | No dust protection | No water protection | Bare PCB, no coating | Self-adhesive backing | Base price (0%) |
| IP65 | Dust-tight | Water jets from any direction (low pressure) | Silicone coating or thin silicone tube | Self-adhesive backing | +15-20% vs IP20 |
| IP67 | Dust-tight | Temporary immersion up to 1m for 30 min | Full silicone sleeve or heat-shrink encapsulation | Mounting clips required (no adhesive) | +20-30% vs IP65 |
IP20 LED strips feature bare PCB boards with no waterproof coating. They are the most affordable option but should only be installed in completely dry indoor environments such as living room coves, bedroom headboards, or display cabinets where no moisture exposure is expected. Any humidity or accidental water contact can cause immediate failure.
IP65 LED strips use a silicone coating or thin silicone tube over the PCB. This provides protection against dust and low-pressure water jets from any direction, making them suitable for indoor damp locations (kitchens, bathrooms with proper ventilation) and covered outdoor areas (under eaves, covered patios, signage backlighting). However, IP65 is not suitable for permanent outdoor installation where the strip will be directly exposed to rain.
IP67 LED strips feature full silicone sleeve encapsulation or heat-shrink tubing that completely seals the PCB. These can withstand temporary submersion (up to 1 meter for 30 minutes) and are designed for harsh outdoor environments including direct rain exposure, swimming pool surrounds, automotive applications, and marine environments. The trade-off is higher cost and the requirement for mounting clips instead of adhesive backing.

