1. 1.5 Volt LED Flashers

2.  33-Volt Tunning Voltage

3.  9 Volt 2 Amp Power Supply

4.  AC Line powered LEDs

5.  Audio Booster

6.  Automatic Dual output Display

7.  Automatic Room Power Control

8.  Bass -Treble Tone Control

9.  Battery tester

10.  Frost Alarm

11.  Game Show Timer

12.  Generating -5 Volts From a 9 Volt Battery

13.  High and Low Voltage Cutout with Delay and Melody

14.  High Current Voltage Regulator

15.  Infra Red Switch

16.  Infrared Cordless Headphone

17.  INFRARED TOY CAR MOTOR CONTROLLER

18.  Intruder Radio Alert system

19.  LED 12 Volt Lead Acid Battery Meter

20.  LED Chaser

21.  Low Cost Automatic Gate Light With A Musical Bell

22.  Multi-Melody Generator with Instrumental Effect

23.  Smart Cellphone Holder

24.  Smart Foot Switch

25.  Three-Color Display using Bicolor LEDs