hanlin_y

DIY Workbench Removable Bike Repair Stand

1.6K Views, 3 Favorites

Road Bike Daytime and Side Visible 350mA Light (Single Cell)

1.9K Views, 6 Favorites

Circadian Friendly LED Desk Lamp (no Programming Required!)

1.9K Views, 8 Favorites

20W LED Bike Headlight With Side Visibility

2.7K Views, 17 Favorites

Visor Mounted Multi-Colour LED Light Therapy Lamp

1.5K Views, 3 Favorites

Four Colour LED Grow Light With PWM Dimming

3.3K Views, 24 Favorites

ATTiny84 Based 3A Step-Down LED Driver

3.3K Views, 36 Favorites

12V SLA Powered 15W LED Lamp

2.1K Views, 17 Favorites

78.125 KHz ATtiny85 Based Boost LED Driver

5.2K Views, 23 Favorites

Sunrise Simulator With Adjustable Lamp Colour and Intensity

3.3K Views, 21 Favorites

Wiring a Tactical LED for an External Power Source

3.0K Views, 17 Favorites

15 Watt LED Helmet Light With Wide Angle Rear Light

2.1K Views, 17 Favorites

Step-down LED Driver (Up to 36V Input With Sleep Feature)

5.4K Views, 44 Favorites

Transistor Instead of Relay for Car Horns

4.6K Views, 49 Favorites

High Powered Helmet Light (Front, Side, and Rear Combo)

2.3K Views, 22 Favorites

Car Horns for Bicycles

7.2K Views, 40 Favorites

DIY Self-Leveling Bike Light Mount

4.4K Views, 36 Favorites

High Powered Yellow Bike Light (Front+Side Combo)

4.3K Views, 23 Favorites

Mounting Bike Lights on Bike Baskets

10K Views, 9 Favorites

How to Mount Seat Post Bike Lights to a Pannier Rack

5.0K Views, 8 Favorites

Multi-coloured Bicycle Frame Lights

3.1K Views, 35 Favorites

Arduino-based High Powered Switching LED Drivers

24K Views, 68 Favorites

Arduino-based Switching Voltage Regulators

118K Views, 173 Favorites

84W PC Chassis LED Grow Light

24K Views, 209 Favorites

Rechargeable Blue LED SAD Light Book

48K Views, 256 Favorites

3W LED Hat Lamp Update (PWM Dimmer Circuit)

5.0K Views, 11 Favorites

LED Dimmable Lightbox

5.7K Views, 14 Favorites

External Li-ion Battery for Digital Cameras

18K Views, 45 Favorites

Modifying Flat-Topped Li-ion Cells to Fit Into Battery Holders

6.8K Views, 8 Favorites

3W LED Hat Lamp - 300 Lumens

12K Views, 29 Favorites

Simple Low Resistance Tester (Milliohmmeter)

46K Views, 12 Favorites

3W LED Strobe - 2 AA Batteries and Joule Thief

40K Views, 41 Favorites

Multi-Color Light Painter (Touch Sensitive)

8.7K Views, 48 Favorites

Cultured Red Cabbage

3.9K Views, 6 Favorites

List of Everyday Items for Heatsinking LEDs

4.9K Views, 9 Favorites

3 Watt LED Lamp

7.4K Views, 22 Favorites

24 Watt LED Grow Light With Brightness Control

67K Views, 282 Favorites

How to Triple the Battery Life of AAA Flashlights

16K Views, 10 Favorites

Determining Forward Voltage of LED's

162K Views, 60 Favorites

Using an DC Adapter for Battery Powered Device

35K Views, 24 Favorites

LED Night Lamp

3.0K Views, 1 Favorites