Shanghai Longmao Micro developed LED spotlight SLM2841SMR16 drive source

At present, most of the LED spotlights on the market are 3×1W. However, if a 3W LED is used instead of a 40-50W halogen lamp, the brightness is a difference in brightness, so it is necessary to develop a larger wattage LED spotlight. . Therefore, currently 5×1W or 6×1W LED spotlights are popular with many users.

However, the voltage of MR16 is 12V, and 5-6 1W LEDs are connected in series, and its voltage exceeds 16-20V. Therefore, unlike 3×1W, it can be driven by buck type constant current driving source, and must be used. A constant current drive source of the press type is driven.

In order to meet this need, Longmao has developed the SLM2841SMR16 type drive source. Its shape photo is as follows:





This constant current drive source has good constant current characteristics:



The detailed indicators are as follows:

1. Input voltage: 12V (AC or DC)

2. Output current: 350mA

3. Load capacity: Drive up to 6 1 watt LEDs in series

4. Efficiency: 86%

5. PCB size: 13x22mm


It has been mass produced.

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