Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="levin818" data-source="post: 1064353785" data-attributes="member: 849">From what i can see from the picture, you connected 4 LEDs in parallel, then series a 100ohm 1/4W resistor for current control. Right?It is not wrong to connect in this way but you need a high wattage resistor to handle the power dissipated by the resistor.Assuming your LED's forward voltage is 3V, battery voltage is 13V.Voltage across the resistor is, 13-3 = 10VPower dissipated at the resistor is (10)(10)/100 = 1WIt mean, minimum requirement for the resistor's wattage is 1W. Reliable manufacturer usually use 2W to increase the reliability.Your resistor is only 1/4W, sure burn!---------- Post added at 11:35 PM ---------- 6 hour anti-bump limit - Previous post was at 11:20 PM ----------To light up 4 LEDs with 13V supply, a more suitable (efficient) way should be connecting the LED in series, like what TitanRev does.You will greatly reduce the heat/power dissipated at the resistor compare to parallel connection.</blockquote>

Verification

The Marketplace Latest

Proton Saga VVT drive68 body kit
- Started by jeff6126
- Exterior and Body
Mercedes Benz W204 C63 AMG body kit
- Started by jeff6126
- Exterior and Body
Mercedes Benz W213 E63 AMG Body Kit
- Started by jeff6126
- Exterior and Body
original rare Rays Volk Racing STi B20 17x7jj...
- Started by david tao
- Chassis and Wheels
Perodua Myvi GT Front Bumper With Day Light
- Started by jeff6126
- Exterior and Body
Installation for Kia Forte... ~GTwing Spoiler
- Started by jeff6126
- Exterior and Body
Brake caliper spray
- Started by jeff6126
- Exterior and Body
Perodua Bezza /Gear Up body kit/spoiler /Akrapovic...
- Started by jeff6126
- Exterior and Body
Perodua Bezza body kit
- Started by jeff6126
- Exterior and Body
Honda civic FC varis GTwing spoiler
- Started by jeff6126
- Exterior and Body

Posts refresh every 5 minutes

Hyundai Ioniq previewed in Malaysia. 139hp, 6 Speed DCT Hybrid!

Hyundai-Sime Darby Motors (HSDM) is previewing the Hyundai Ioniq Hybrid after beginning to...

Russian Airtrekers!

Loads of cool and nice modded Airtreks. Worth checking: Mitsubishi Airtrek

---------- Post added at 12:12 PM ---------- 6 hour...

Zener diode method to cheat MAP sensor?

..anyone ever tried?

If you do a Google search for DIY FCD you'll see tons of schematics.
i found a simple diagram, quite clear, IMO.
3 Wires coming out of MAP

http://www.thedodgegarage.com/turbo/map_15.jpg...

Search

Enjoying Zerotohundred?

Log-in for an ad-less experience

Reply to thread

The Marketplace Latest

Proton Saga VVT drive68 body kit

Mercedes Benz W204 C63 AMG body kit

Mercedes Benz W213 E63 AMG Body Kit

original rare Rays Volk Racing STi B20 17x7jj...

Perodua Myvi GT Front Bumper With Day Light

Installation for Kia Forte... ~GTwing Spoiler

Brake caliper spray

Perodua Bezza /Gear Up body kit/spoiler /Akrapovic...

Perodua Bezza body kit

Honda civic FC varis GTwing spoiler

Posts refresh every 5 minutes

Recent Posts

Performance Tire Prices(Pls Contribute The Price & Location to buy)

Tire Price list Zth

Paging for Hyundai Coupe owner, CCGT @ 28th May 2005

New GR Yaris Automatic & GR Supra Track Edition Now in Malaysia

2025 Volvo EX90 Wins World Luxury Car Award

Search

Online now

Enjoying Zerotohundred?