NEW Joule Thief SMD DC/DC 3528 white Led flashlight, No toroid inductor.

Description

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Ultra small DC/DC led module
Soldered SMD 3528  led white, you can remove and replace with any other.
0.34x0.38 inches (8.56x9.70 mm) led driver module
Operation modes:
led module (joule thief)
:
connect battery to +/- pins
Solar night auto on lamp
:
connect rechargeable battery to +/- pins and solar panel to -/ s pin (positive pole)
Battery operated night auto on lamp
:
connect battery to +/- pins and photo-transistor to + (collector) / s pin (emitter) (
sold without photo-transistor
)
Features:
- dimensions 0.34x0.38 inches (8.56x9.70 mm)
- solar LED lighting ASIC chip
- auto on
- over discharge protection circuit
- internal integration of Short Based diodes and other circuit
- LED Under-voltage shutdown makes no blinking LED lights.
- operating voltage: 0.9V-1.5V
- output current adjusted to: 5mA
- input current : 15mA
- high efficiency