---
product_id: 1185379
title: "H4 100/80W High Wattage Bulb, 12V"
brand: "hella"
price: "136 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Hella"
url: https://www.desertcart.dk/products/1185379-h4-100-80w-high-wattage-bulb-12v
store_origin: DK
region: Denmark
---

# 12V optimized for vehicle systems 100/80W high wattage power High heat output, glass enclosure recommended H4 100/80W High Wattage Bulb, 12V

**Brand:** hella
**Price:** 136 kr
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your off-road adventures with power and precision!

## Quick Answers

- **What is this?** H4 100/80W High Wattage Bulb, 12V by hella
- **How much does it cost?** 136 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/1185379-h4-100-80w-high-wattage-bulb-12v)

## Best For

- hella enthusiasts

## Why This Product

- Trusted hella brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Beam Focus:** Designed to maintain proper low and high beam alignment, avoiding blinding glare and maximizing road safety.
- • **Compatibility Warning:** Requires upgraded wiring harness and high-temp sockets to prevent overheating and electrical damage—upgrade your setup for flawless performance.
- • **Unmatched Brightness Boost:** 100/80W delivers up to 60% more light than standard bulbs for superior visibility in challenging conditions.
- • **Cost-Effective Power Upgrade:** Offers LED-comparable brightness at a fraction of the price, perfect for professionals who demand value without compromise.
- • **Professional-Grade Durability:** Engineered for off-road, agricultural, and industrial use with rigorous quality testing ensuring trusted performance.

## Overview

The Hella H4 100/80W High Wattage Bulb is a 12V automotive headlight bulb engineered for professionals needing enhanced visibility in off-road, agricultural, and industrial environments. Delivering up to 60% more light than standard bulbs, it ensures superior beam focus and brightness comparable to LEDs. Designed for glass enclosures and requiring upgraded wiring to handle increased heat and amperage, this bulb balances cost-efficiency with high performance under demanding conditions.

## Description

When it comes to driving safety, sight is the most important sense. Visibility can be impaired under various circumstances and driving under these adverse conditions will increase the risk of an accident. To meet these challenges, HELLA is continually improving existing lighting systems and developing new lighting equipment and components. HELLA bulbs undergo strenuous quality tests. This is achieved by using the most modern equipment in light metering, which provides information if a bulb has the necessary properties.

Review: Bright, cheap, beware of heat and headlight switch / wiring harness issues - First, be aware that no automobile or motorcycle sold in the United States has, stock, a wiring harness and headlight switch capable of surviving these bulbs. You *will* eventually burn out your headlight switch on your turn signal stalk, which *will* cost major dollars to repair -- *unless* you buy or build a heavy duty relay harness for your headlights. Furthermore, even if your headlight switch survives, it is quite likely that you will melt the light bulb socket down at the headlight unless you've replaced it with a heavy duty high temperature one, both due to the high amperage caused by voltage drop in too-small stock wiring and due to the simple fact that these bulbs put out more heat. The end result is that a simple light bulb change will turn into a trip to your local NAPA store to get a high-temperature socket, then a lot of cursing as you cut off the old socket (and bulb) and wire in a new socket. With that aside: I have used these bulbs in two Jeep Wranglers (using H4 conversion kits with heavy duty relay wiring harnesses) and two motorcycles (using a custom relay kit and harness that I built myself). They are as bright as stock reflectors are capable of handling. They do make more heat than stock bulbs, thus I recommend them only in glass enclosures, not in plastic ones. My Kawasaki motorcycles had a glass enclosure, and the Hella H4 conversion kits I used on my Jeeps have glass enclosures too. My Suzuki motorcycle had plastic enclosures so I used the Phillips X-Treme Power bulbs in that one instead. That said, the Phillips X-Treme bulbs are quite a bit more expensive than these bulbs and last about the same amount of time. If your car or motorcycle is properly set up to use these, they're a lot cheaper than the X-Tremes and put out a little more light. They're great bulbs, all in all. Just don't think you can put them into a stock wiring harness without a problem -- you *will* eventually burn something out or melt something.
Review: H4 100/80W, low beam comparable to LED brightness - H4 100/80W This bulb would be a god sent for motorcycles, only if it came in the fog/french yellow too... The low beam is properly positioned, quite bright and whiter than I expected from an incandescent. The high beam is also properly positioned, the mirror seems to focus it just like a DOT 60/55W bulb, no funky blinding patterns or wide spread beam as experienced with some LEDs. My intent was a brighter low beam and I am satisfied... I have tried a number of LEDs and it is comparable in luminosity/visibility. With LEDs I was not satisfied with the high beam as my mirror would not properly focus the beam, so I kept using 60/55W after testing 3-4 brands, the high end models. This 100/80W does not suffer from that. It is considerably brighter than a regular 60/55W, in fact some white road signs seem to reflect back almost too much light... It may be distracting at first.. It does not seem to heat up in a ridiculous manner. In theory it should put out ~60% more heat and light than the typical H4 so check your equipment after a few uses if it has completely enclosed headlights... For setups that keep both low and high beams ON, double check the values of the fuses as it may blow the typical 10Amps... Divide wattage consumed by the volts supplied to find the amps required for the fuse. 100W/12V=8Amps, 80W=7Amps, both ON = 15 (in reality the voltage is between 13.4-14V for a running motor, I don't know at what voltage the fuses are measured) Also, if possible degrease the bulb before installation w/ acetone, isopropyl alcohol, contact cleaner, etc, as oily spots on glass create hot spots. Be safe, have fun.

## Features

- 1 Bulb - Single box packaging
- Off-road Use Only
- The ideal bulbs for professionals who travel off-road, or make special demands on light power, such as those in agriculture, forestry, on building sites or even 24-hour racing.
- HELLA bulbs are produced under stringent testing requirements, you know this is a brand that can be trusted. The ideal bulbs for professionals who travel off-road, or make special demands on light power. Such as those in agriculture or forestry, or on building sites
- All bulbs with higher wattage than standard may damage or overheat a headlight wiring system. HELLA’s warranty does not cover damaged headlights from using high wattage bulbs. HELLA’s warranty applies to bulb failure or lack of designed performance. Please use high wattage bulbs at your own risk.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000COBLKW |
| Auto Part Position | Rear |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #163,516 in Automotive ( See Top 100 in Automotive ) #852 in Automotive Headlight Bulbs #1,890 in Automotive Headlight Assemblies |
| Brand | Hella |
| Brightness | 100 lumen |
| Color | Multi |
| Customer Reviews | 4.4 4.4 out of 5 stars (658) |
| Date First Available | June 30, 2006 |
| Exterior | Machined |
| Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 00760687143574, 00760687781592 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 0.317 ounces |
| Item model number | H4 100/80W |
| Light Output Maximum | 100 Lumens |
| Manufacturer | Hella |
| Manufacturer Part Number | H4 100/80W |
| Mirror Lighting Type | automotive-exterior-headlight-bulbs |
| Model | bulb |
| OEM Part Number | H4 100/80W |
| Product Dimensions | 3 x 2 x 2 inches |
| Special Features | Puddle Lamp |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 760687781592 760687143574 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Hella
- **Brightness:** 100 lumen
- **Light Source Type:** LED
- **Specific Uses For Product:** Fleet and plant maintenance.
- **Wattage:** 80

## Images

![H4 100/80W High Wattage Bulb, 12V - Image 1](https://m.media-amazon.com/images/I/81xrr6NwdaL.jpg)

## Questions & Answers

**Q: Has anyone tried this bulb on an BMW G650GS?  I am a bit concerned it might fry the wires, reflector or lens.**
A: You MUST use 12g stranded wire with quality insulation to each h4 socket terminal.  You MUST use Ceramic High Heat HD socket.  You Must usea relay that is 20% Higher rated than the max amp draw.  Your altenator or generator must have the added capacity so to cover the increased draw@ idle of these lamps or they will draw down the battery.  If smaller wire or alt capacity there will be voltage drop which increases amp and thus heat.  For 1 light on a bike figure for 13.5v to be safe which adds to 9.6 amps.  Use a 15 amp relay.  For high low you need 2 relays use two 15a or 1 15a hi and 1 10a lo.  If its 2 for a dual lamp or 4wheel vehicle double Watt   so 260w÷13.5=17a.  Best use 25 or 30a relay for high and low.  Ideally use a dual output relay so 1 12g lead to each bulb from  relay term not daisy chained.  Ideally run 10g from battery or alt post to relay input.  Built like this you will never have a capacity or heat issue when in good condition.

YOU CAN NOT USE ANY STOCK WIRING HARNESS!!  NOT EVEN MOST PREBUILT HD WIRING HARNESS.

If you follow the above general guide with properly crimped connectors it will not only not burn up but 2
Will have much higher light output.  Remember a 5% drop in voltage = a 15% drop in light output 1:3 ratio. Ideal voltage is 14.5V on 12v systems.

**Q: I have an original stock headlight.  Anything special i need to do to use this bulb?**
A: The current draw with this bulb is more than stock so after having the lights on for say a 30 minute drive in warm weather see if the connector at the bulb is hot as well as the wires going to it with the lights still on if so you should install a hevi-duty  connector and wire kit. My jeep 2005 wrangler handled these bulbs just fine and I think most vehicles will need nothing.....DBW

**Q: I have a 1998 Kawasaki Vulcan 800 Classic. Any need to upgrade anything electrical or does this simply replace the stock bulb? Thanks**
A: Oh yeah. You should not just plug this in and go. These bulbs make a ton more heat than a stock 55/60 bulb. Buy a ceramic plug as well, otherwise the stock pug will just melt over time. I think I paid maybe 12 bucks for 2 ceramic H4 plugs on Amazon.

**Q: Will these work on my motorcycle? it's a 2004 bmw r1150r, and h4 is stamped on the glass plate of the light housing**
A: The h4 bulb will fit, May want to check the wattage they get kind of hot. There is a lower watt bulb too I believe.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bright, cheap, beware of heat and headlight switch / wiring harness issues
*by E***N on March 23, 2014*

First, be aware that no automobile or motorcycle sold in the United States has, stock, a wiring harness and headlight switch capable of surviving these bulbs. You *will* eventually burn out your headlight switch on your turn signal stalk, which *will* cost major dollars to repair -- *unless* you buy or build a heavy duty relay harness for your headlights. Furthermore, even if your headlight switch survives, it is quite likely that you will melt the light bulb socket down at the headlight unless you've replaced it with a heavy duty high temperature one, both due to the high amperage caused by voltage drop in too-small stock wiring and due to the simple fact that these bulbs put out more heat. The end result is that a simple light bulb change will turn into a trip to your local NAPA store to get a high-temperature socket, then a lot of cursing as you cut off the old socket (and bulb) and wire in a new socket. With that aside: I have used these bulbs in two Jeep Wranglers (using H4 conversion kits with heavy duty relay wiring harnesses) and two motorcycles (using a custom relay kit and harness that I built myself). They are as bright as stock reflectors are capable of handling. They do make more heat than stock bulbs, thus I recommend them only in glass enclosures, not in plastic ones. My Kawasaki motorcycles had a glass enclosure, and the Hella H4 conversion kits I used on my Jeeps have glass enclosures too. My Suzuki motorcycle had plastic enclosures so I used the Phillips X-Treme Power bulbs in that one instead. That said, the Phillips X-Treme bulbs are quite a bit more expensive than these bulbs and last about the same amount of time. If your car or motorcycle is properly set up to use these, they're a lot cheaper than the X-Tremes and put out a little more light. They're great bulbs, all in all. Just don't think you can put them into a stock wiring harness without a problem -- you *will* eventually burn something out or melt something.

### ⭐⭐⭐⭐⭐ H4 100/80W, low beam comparable to LED brightness
*by D***H on February 10, 2020*

H4 100/80W This bulb would be a god sent for motorcycles, only if it came in the fog/french yellow too... The low beam is properly positioned, quite bright and whiter than I expected from an incandescent. The high beam is also properly positioned, the mirror seems to focus it just like a DOT 60/55W bulb, no funky blinding patterns or wide spread beam as experienced with some LEDs. My intent was a brighter low beam and I am satisfied... I have tried a number of LEDs and it is comparable in luminosity/visibility. With LEDs I was not satisfied with the high beam as my mirror would not properly focus the beam, so I kept using 60/55W after testing 3-4 brands, the high end models. This 100/80W does not suffer from that. It is considerably brighter than a regular 60/55W, in fact some white road signs seem to reflect back almost too much light... It may be distracting at first.. It does not seem to heat up in a ridiculous manner. In theory it should put out ~60% more heat and light than the typical H4 so check your equipment after a few uses if it has completely enclosed headlights... For setups that keep both low and high beams ON, double check the values of the fuses as it may blow the typical 10Amps... Divide wattage consumed by the volts supplied to find the amps required for the fuse. 100W/12V=8Amps, 80W=7Amps, both ON = 15 (in reality the voltage is between 13.4-14V for a running motor, I don't know at what voltage the fuses are measured) Also, if possible degrease the bulb before installation w/ acetone, isopropyl alcohol, contact cleaner, etc, as oily spots on glass create hot spots. Be safe, have fun.

### ⭐⭐⭐⭐⭐ 100/80W H4 Gives My Old Car a Lighting Performance Boost for Safer Driving
*by H***Y on December 4, 2020*

These bulbs helped, a LOT. I'm an old guy, and my aging eyes need all the help they can get when I drive at night. These Hella 100/80W H4 bulbs are BETTER than the TRS Mini-D2S HID Projector Retrofit I had installed previously. The Hella bulbs give you full spectrum TRUE white lighting that helps you see everything, and the stock headlight housing puts the light where it's supposed to go, down the road. I have a set of TRS 3Five ballasts and Mini D2S projectors sitting in my shop cabinet ... I am NOT going to re-install them, not going back to that poorly prioritized TRS HID D2S projector lighting pattern with stupid blue tint from TRS HID capsules and stupid amounts of just-in-front-of-the-bumper foreground lighting. It's for sale, cheap. My vehicle's headlight wiring does get a tiny bit warm with these Hella 100/80W H4 bulbs in use, as does the headlight lens, but it's just that ... warmer, not hot. Will probably build a thicker gauge wiring harness (12 AWG wiring) to see what these Hella 100/80W H4 bulbs can really do , as the stock 18 AWG wiring in my vehicle is probably choking these a little in terms of voltage drop and current limitations from the thin stock wiring. Even with that electrical slowdown from the stock wiring, these Hella 100/80W H4 bulbs still illuminate noticeably better than stock 60/55W H4 bulbs. Gave them 5 stars for longevity, as I have no reason to downgrade them (high performance bulbs tend to last a bit less than regular bulbs), but if they don't last a year, I'll be back with a revision to the review. Very pleased with the increase in illumination while maintaining a useable beam pattern. Win win.

## Frequently Bought Together

- Hella H4 100/80W High Wattage Bulb, 12V
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-28*