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10W 20W 30W 50W 70W 100W LED Полный спектр Растение Grow Light Chip DIY DC9-10V / DC20-32V
US$6.99 US$8.99

Q: How can the current be 450 mA for a 30W chip, at 30 V the power would only be less than 15W, instead of 30W!

Задавает Henk на 2018-01-27 07:49:57

misterberger18 I am an electronics engineer. I analyzed the 30 watt LED chip. here are the measured values. The LED is mounted on a large heat sink. 20 x 6 x 6 cm. 31 Volt - 0,3 Amper = 9,5 Watt 32V x 0,4A = 12,8W 33 x 0,54 = 17,8 W 34 x 0,67 = 22,8 W 35 x 0,795 = 27,8 W !! According to the manufacturer, the chip may only reach a temperature of 60 degrees. This is standard and must be observed! The chip can be operated with a maximum of 11 watts on this passive heat sink. He works like this for many years! With 30 watts operation, water cooling should be used as with a computer processor

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