YJYGR LED Display Module Kit - 10pcs DIY BT33 Table Lamp

YJYGR

Features:

• The dimming circuit can make the voltage at both ends of the bulb change in the range of tens to 200 volts, and the dimming effect is remarkable.
• In the circuit, R2, R3, R4, RP1, C1 and VT1 constitute a single junction transistor oscillator circuit, which is used to generate trigger pulses.
• When the capacitor is charged by R4 and RP1, the voltage Ue increases gradually.
• When the Ue reaches the peak voltage, e B1 turns on and the voltage on the capacitor outputs a pulse voltage to R2 via e-b1.
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