What is the difference between V-KOOL k15 and x15?
3 Answers
V-KOOL k15 and x15 differ as follows: Light transmittance: Both V-KOOL x15 and V-KOOL k15 are dark films, with visible light transmittance in the range of 15~20%. The actual values are 16% for x15 and 18% for k15. The higher the value, the lighter the color, so x15 is darker than k15. Thermal insulation performance: V-KOOL x15 is the top-tier series of V-KOOL, a five-star product; V-KOOL k15 is the regular series of V-KOOL, a three-star product. In terms of thermal insulation and overall performance, x15 is one grade higher than k15, and of course, the price is also significantly higher.
I've been driving for years and have done quite a bit of research on car window films. The main differences between V-KOOL K15 and X15 lie in heat insulation and light transmission. K15 offers exceptional heat insulation – even in the peak of summer, the car doesn't get too hot inside as its film layer is specially designed to absorb infrared rays. X15 provides better clarity, ensuring clear daytime visibility and safer driving in rainy or foggy conditions, though its heat insulation is slightly weaker. Additionally, K15 has lower light transmittance, making windows appear darker after installation with better privacy; X15 has higher light transmittance, keeping the interior brighter. My recommendation: if you live in a hot region, go for K15 – it's worth the extra cost for daily driving comfort. If you mainly drive in urban areas or want to save money, X15 is sufficient, easy to maintain, and lasts 3-4 years without issues.
As a budget-conscious average consumer, when comparing the K15 and X15, I prioritize cost-effectiveness. The K15 is pricier, but its thermal insulation performance is truly impressive—it can save some air conditioning electricity costs after installation. The X15 is more affordable with better light transmission that doesn’t obstruct visibility, making it suitable for beginners or those who fear blurred vision. The differences lie in the details: the K15 has thicker materials, giving the car a more stable and premium appearance after installation, while the X15 is lighter and less prone to scratches during car washes. I also consulted a technician—both offer similar UV protection, blocking over 99% of rays, so daily skin protection isn’t a concern. The choice depends on budget and environment: I chose the K15 in the south for its comfort despite the higher price, while my friend in the north uses the X15 for hassle-free savings.
