[Disassembly] 5 nuclear LED bulbs, 6 3W LED bulbs

I bought five six kinds of LED lights, 1.05 yuan unlicensed, 1.8 yuan IC constant current, 2 yuan Pinto, 3 yuan Yapp IC constant current, 4.8 yuan bright and beautiful flow, 9.9 yuan Tsinghua Tongfang resistance constant current, are ultra-cheap civilian goods, look at it to see if it is value for money, or fish in troubled waters?

First, the last 3D LED light dismantling diagram of the 1.8 yuan package received today, IC constant current drive.

[Disassembly] 5 nuclear LED bulbs Six 3W LED bulbs

The measured power is rather strange, the power is up to standard, but the brightness is very poor. It seems that the led chip is too small, and the brightness is not as bright as the “product extension” of 2.7w. The total voltage applied to the led group is 9.24v current 245mA.

[Disassembly] 5 nuclear LED bulbs Six 3W LED bulbs

More than half an hour, the case temperature is 58 ° C

[Disassembly] 5 nuclear LED bulbs Six 3W LED bulbs

Short circuit power and current.

[Disassembly] 5 nuclear LED bulbs Six 3W LED bulbs

3.96mm Ribbon Connector

3.96Mm Ribbon Connector,Single Row Connector,Pc Board Connector,Pc Board Power Connector

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