power saving led bulbs for your home

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Everyone talking about power saving right now and you also can do that with this.first you have to bye this light fittings. various type available in the market. in here i have take one of them for show you.   

• the super bright 1W SMD type LED

LED banner technology

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hi everyone,

today i'm going to tell you  about LED banner. its very popular now in here in sri lanka. its not difficult to create. in this banner i used two LED panel and S1 control circuit.and also 5V SMPS power supply unit.this S1 unit, it can connect to computer through serial port. and the software which i used here called 'powerled' it totally free of charge and u can get it with the S1 unit.

230V vs LED's

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there are many way's to lite up the led's from 230V

Attention. This circuit works with life threatening line voltage.

yo u can change the capacitor value 
for 10mA use 150nF, for 20mA use 300nF.

Dark-activated 230V Lamp

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This device allows one or more lamps to illuminate at sunset and turn off at dawn.

Q1 and Q2 form a trigger device for the SCR, providing short pulses at 100Hz frequency. Pulse duration is set by R2 and C1.

When the light hits R1, the photo resistor assumes a very low

Flashing 230V Lights

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This design can be of some interest for those wanting striking light signs, as it can drive up to three 230V lamp strings in three operating modes.

The 15V dc supply is obtained from a nominal 230/24V center tapped ac transformer (T1) and a full wave rectifier (D5 & D6): Zener diode D4 was added to clamp the dc voltage to 15V maximum.

Triacs D7, D8 and D9 are insulated from the control circuitry by means of Optoisolators IC2, IC3 and IC4. IC1A, B and C are wired as monostables and cascaded in order to obtain a rotating sequence when the Mode switch SW1 is set in the Rotate position.