In the early stages of the development of SSL technology for general lighting, ENERGY STAR's requirements for SSL general lighting products were divided into two categories: recent requirements (Class A) and long-term/future performance targets (Class B). Recent requirements for Under-cabinet kitchen/shelf-mounted, Portable desk/task, Recessed downlight, Outdoor porch, Outdoor Outdoor ste p and Outdoor path, the energy performance of these products must meet or exceed the level of fluorescent light source, while the long-term goal pre-displays the DOE's expectation of the performance improvement of SSL luminaires after three years. .
This standard also applies to SSL decorative luminaires with obvious general lighting capabilities. It is worth noting that draft II is only applicable to SSL products connected to the power grid, indicator products (such as traffic lights and exit signs) and SSL lighting products (such as holiday lights) used only for decorative lighting are not within their jurisdiction. .
The “General Requirements†are based on existing lighting industry reference standards and test procedures, and new or revised standards and test procedures are underway.
For non-SSL home luminaires, ENERGY STAR uses system efficiency at 25°C (system light output divided by input power) to define luminaire performance.
The main reasons for using different calculation formulas are: 1LED is generally integrated with the luminaire, it is difficult to ensure that the LED light source is taken out of the luminaire and its performance is not affected; 2 the performance of the LED is greatly affected by temperature, it produces Heat is generally dissipated through an external heat sink. If the LED is separated from the heat sink, the accuracy of the measurement will be greatly reduced, and the measurement standard or test flow of the LED system efficiency has not yet been released. The standards organization is working on a draft test procedure for the photometric measurement of LED luminaires, which is expected to be completed in the middle of this year. 3 The efficacy of the luminaires is factored in the loss of drivers, heat and luminaires. The resulting energy efficiency information is more authentic and can better satisfy the buyer. The need for maximum light output, minimum energy input.
Ultrasonic Flow Meter can convert litres and gallons to better meet your requirements. Accuracy: + / - 1%, linear: 0.50%, repetitive: 0.20%, precision: plus or minus 1%, speed range: 0.1-6 m/s, temperature range: 0-110 ° C
S1+M2 sensor: Easily mount the sensor on the pipe and input the required information into the control unit. There is no need to destroy the pipe and stop production during the measurement process.
Ultrasonic Flow Meter Portable Ultrasonic Flow Meter has an internal data logger which can record up to 2000 groups of measurement data. If you need to download data, please contact us to obtain the software. (Note: The data can only be viewed on the computer through the software, not directly on the machine.)
Ultrasonic Water Flow Meter built-in high capacity NIMH rechargeable battery, can support the flow meter for up to 12 hours.
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