A.P.Electronics
Vijayta Films Interview Questions and Answers
Q1. What is the difference between cc and cv led driver.
CC LED driver maintains constant current output while CV LED driver maintains constant voltage output.
CC LED driver is used for high power LEDs and ensures uniform brightness.
CV LED driver is used for low power LEDs and ensures longer lifespan.
CC LED driver is more expensive than CV LED driver.
CC LED driver is more efficient than CV LED driver.
CC LED driver is used in applications where LED brightness needs to be maintained constant.
CV LED driver is used in applications where...read more
Q2. Do u know the documentation process in led lighting.
Documentation process in LED lighting involves creating technical specifications, test reports, and user manuals.
Technical specifications outline the product's features, performance, and compliance with industry standards.
Test reports document the results of various tests conducted on the product to ensure its quality and safety.
User manuals provide instructions on how to install, operate, and maintain the product.
Other documentation may include design drawings, bill of mater...read more
Q3. Why do surge occour at outdoor led lighting.
Surges occur at outdoor LED lighting due to various reasons.
Lightning strikes
Power fluctuations
Switching of high-power equipment
Faulty wiring
Poor grounding
Inadequate surge protection
Environmental factors such as humidity and temperature changes
Overloading of circuits
Electromagnetic interference
Voltage spikes from the power grid
Inrush current during startup
Design flaws in the LED driver circuitry
Q4. How to resolve led flickering problem.
LED flickering can be resolved by checking power supply, using proper dimmer, and selecting high-quality LED bulbs.
Check power supply for voltage fluctuations
Use a proper dimmer that is compatible with LED bulbs
Select high-quality LED bulbs that are designed to work with dimmers
Ensure proper grounding of the circuit
Avoid using too many LED bulbs on a single circuit
Consider using an LED driver to regulate the voltage
Check for loose connections or damaged wiring
Q5. Give me the rough estimate of 100w and 50w FL.
The rough estimate of 100w and 50w FL depends on various factors such as the type of bulb, voltage, and lumens.
The type of bulb used affects the wattage and lumens produced.
The voltage supplied also affects the wattage and lumens produced.
The lumens produced by a 100w and 50w FL bulb can vary depending on the manufacturer.
A rough estimate for a 100w FL bulb is around 1600-1800 lumens.
A rough estimate for a 50w FL bulb is around 800-900 lumens.
Q6. Surge protection device installation process.
Surge protection device installation involves proper grounding and connection to electrical panels.
Ensure proper grounding of the device
Connect the device to the electrical panel
Follow manufacturer's instructions for installation
Test the device after installation to ensure it is functioning properly
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