The Difference Between LED Bulbs and Halogen/Incandescent – Why It’s Time to Switch
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If your home or business still uses halogen or incandescent bulbs, you’re likely paying more than you need to for lighting. Modern LED bulbs—like our 11W E27 and 11W B22 models—offer the same usable light but with much lower energy use, longer life, and less heat. Below is a clear comparison to help you see why switching makes sense.
Quick Comparison: LED vs Halogen vs Incandescent
| Feature | Incandescent | Halogen | LED (11W) |
|---|---|---|---|
| Typical Power | ~60 W | ~42 W | 11 W |
| Approx. Brightness | ~800 lumens | ~800 lumens | ~1020 lumens |
| Lifespan | ~1,000 hours | ~2,000 hours | 15,000 hours |
| Heat Output | High (very hot) | High | Low (runs cool) |
| Energy Use | Highest | High | Low (≈80% less than incandescent) |
Energy & Cost — Real Savings
An 11W LED bulb produces roughly the same light as a 60W incandescent but uses around 80% less electricity. Using a typical NZ electricity rate, replacing a handful of old bulbs with 11W LEDs often pays back the extra upfront cost within months — and continues to save you money every year after that.
Why LEDs Last So Much Longer
LEDs are solid-state devices with no fragile filaments. That construction, combined with efficient heat management, gives them a much longer useful life. Fewer replacements mean lower running costs and less waste — especially valuable for high or hard-to-reach fittings.
Safety & Comfort
- Cooler running: LEDs emit considerably less heat, reducing fire risk and making them safer around fittings and shades.
- No buzzing or flicker: Modern LED drivers give steady light without the flicker some old fluorescents or cheap halogens produce.
- Better colour choices: Choose warm 3000K for cosy rooms or 4000–5000K for task and work areas — without losing efficiency.
Environmental Impact
LED bulbs contain no mercury and use much less energy, which lowers greenhouse gas emissions. Fewer replacements also mean less waste to landfill — a simple step toward a greener home or workplace.
Choosing the Right LED Bulb
Here’s a short checklist to get the best results when switching:
- Match lumens, not watts: Look for the lumen rating to match the brightness you want (e.g., ~800 lm for a 60W incandescent equivalent).
- Pick the right colour: 3000K = warm/relaxing; 4000K = neutral; 5000K = bright/task light.
- Dimmable? Buy a product labelled “dimmable” if you use dimmer switches and pair it with a compatible LED dimmer.
- Check certification: Choose SAA-certified products for NZ safety and compliance.
Popular GreenLED Replacements
- 11W LED Bulb – E27 — common household replacement for screw fittings
- 11W LED Bulb – B22 — bayonet base option
- LED Downlights — upgrade recessed fittings to efficient LEDs
- LED Tube Lights — replace fluorescents for workshops and garages
Bottom Line — Why Now Is the Time to Switch
Switching to 11W LED bulbs is one of the simplest home upgrades you can make that delivers immediate, measurable benefits: lower power bills, fewer replacements, improved safety, and better lighting. For NZ homes and businesses, it’s a cost-effective, environmentally friendly choice.
Ready to upgrade? Browse our LED options and find the right replacements for your home: Greenled - LED bulbs in NZ .