How to test window tint cooling function

1 year ago

Some buyers think that the product can effectively promote better blood circulation, decrease blood pressure and improve people's health.

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Guangzhou Ruiye Technology Co., Ltd.
Audited supplier
No. 8 Feng Street, Jiaolou, Yushatan Building, Fenghuang Street, Tianhe District, Guangzhou
Product details
In order to show our clients the quality of Duolite window tints, we usually do some tests to show our clients. This is the easiest way:

With the help of fans and heat lamps, you can show how effective these films are in blocking the sun's heat. The infrared light shines on the fan, and the fan will spin rapidly.


After the glass with the Duolite nano-ceramic film is installed and blocked the fan, the rotating fan gradually stops, because the infrared rays of the infrared lamp are effectively blocked by the solar tint film,, the heat cannot penetrate, and the fan does not receive heat energy.


1. How to get a sample from you?

All samples will be free if the unit cost is under 20USD, but the freight should be on your side. If you have an express account like DHL, UPS, etc we will send you directly, if you don't have you can pay express cost to our first, any sample cost could be returned when you make an order.

2. What's your payment term?

We usually do a 30% deposit and a 70% balance before the shipment.

3. What you can supply to me?

We could supply Auto window film, Paint protection film( PPF), OEM/ODM service


1. Flexible OEM/ODM design and cutting service: Full OEM service to realize customers' own brand package and cutting different sizes as your demand.

2. Premium custom service: Fast response within 24 hours. Over 15 years of experience in Customer service, Problem-solving, Marketing, and Logistic delivery, Team support from the Professional Sales team.

3. Quality control and stability: Applied with high quality, each auto film is produced under strict quality control at every manufacturing process from raw materials to final testing, which ensures our window tint film and car paint protection film comes with perfect performance on color and consistency.

4. Fast delivery: We will ship out your order within 3-5 working days after verification of the payment and confirmation of the order. If out of stock, We will inform you in advance.