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The role of ballast

Publish Date 2012-04-20
http://www.wphidled.com/
Sales Manager : Amy Feng
MSN : Amy@wplamps.com Email : Amy@wplamps.com
Alibaba: cn220020193 Phone: 0086-13126403867

1, the working voltage:
Wide voltage range requires to work properly Accepted standard criteria for the 9-17V DC voltage, ballast normal and stable work; crown Di Ballast Electronic Technology Co., Ltd. out of this range in 7-18.5V DC reduction work.

2, the protection function:
1. Overpressure protection when the power supply DC voltage exceeds 19V, the ballast automatically stop working, and to output not exceeding 45W, protection of ballast, HID bulbs to avoid damage.
2. Low-voltage operation and protection:
When asked at 7V DC voltage when the power booster to work, less than 6V, the ballast automatically stop working, to avoid damage.
3. No-load protection:
When the ballast bulb is not connected, in the no-load state, the ballast automatically stop working, to avoid high-voltage injuries staff.
4.Short circuit protection:
When the ballast case of unforeseen circumstances, in the short-circuit state, the ballast automatically stop working, to avoid damage.
5. Reverse Protection:
When the ballast during installation, operator error to reverse the positive and negative input power, the ballast automatically stop work to ensure that the ballast is not damaged.
6. the waterproof performance: The circuit boards and silicone seal silicone ring seal and outlet to ensure that no ballast water leakage.
3, the radiation interference:
1.The relative value of accepted standards of radio interference does not exceed - 70DB, the absolute value of less than 20 microwatts, the actual use of FM radio no noise when the car appears.The product of radio interference is less than-90DB less than 5 microwatts.
2.Anti-sink current interference: Ballast wiring work is measured in the ripple of not more than 300MV, measured about 150MV-250MV. (To avoid interference with multi-car longitudinal electrical work)
4, rapid start-up performance:
Standard voltage power supply input current is 12.8V, the current measured is not less than about 8.5A, so that the xenon lamp then starts within 1 second, luminous flux up to standard brightness of 20%, 4 seconds, luminous flux up to standard brightness of 80%.
5. constant power performance:
When the 7-18.5V input voltage, the ballast output power can be maintained at a constant 42W (plus or minus deviation of not more than 3W) about protection of HID bulbs from damage.






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