Light Sources | LED, Smart, Retro and Other Types | Rendl.com
Light sources are the heart of every fixture – and today, you have the opportunity to choose the exact quality, performance, and look that meets your needs. At Rendl.com, you'll find a wide range of LED and smart bulbs – from classic E27 to decorative retro or RGB styles.
Technological advancements over the past 30 years have brought a revolution – today's light sources are more compact, energy-efficient, last up to 30× longer than halogens, and easily integrate into a smart home. Whether you're after a warm ambiance, precise task lighting, or colorful effects for your interior – you'll find the right option with us.
Where Are Different Light Sources Suitable?
✅ Home lighting – E27 and E14 LED bulbs are ideal for everyday use in the living room, bedroom, or kitchen. They offer pleasant warm light and long lifespan. Also suitable for chandeliers, floor lamps, and table lamps.
✅ Kitchens and work zones – GU10 spotlights or PAR reflectors provide focused, bright light for food prep, home offices, workshops, or work corners. Great for under-cabinet lighting or track systems.
✅ Designer fixtures – Globe and Retro bulbs add an aesthetic touch to any interior. Perfect for open fixtures where the shape and filament design stand out. They offer ambient light and act as decorative elements.
✅ Smart homes – Smart bulbs (E27, GU10, etc.) controlled via mobile apps offer maximum flexibility – adjust brightness, color temperature, schedules, or mood-based scenes. Ideal for bedrooms, living rooms, and offices.
✅ Commercial & creative spaces – RGB bulbs and LED board panels allow you to change colors as needed – perfect for cafés, shops, studios, or events. A modern way to work with lighting ambiance.
Categories of Light Sources at Rendl.com
🔹 E27 – Standard home LEDs and classic shapes, dimmable and smart options.
🔹 GU10 – Spot and technical sources for reflectors and track lights.
🔹 Globe – Decorative round bulbs with a stylish design impression.
🔹 Retro – Dimmable Edison-style bulbs for industrial and vintage interiors.
🔹 111 / G53 – Modern LED alternatives to halogen reflectors.
🔹 G9 – Compact 230V LED sources for small fixtures.
🔹 E14 – Candle – Candle-shaped bulbs ideal for chandeliers and décor.
🔹 LED module – Flat light panels for surface and recessed fixtures.
🔹 Smart – App-controlled bulbs – color, dimming, scenes.
🔹 PAR – High-performance reflector bulbs for indoor and outdoor use.
🔹 RGBW – Colorful ambiance for entertainment, chill, or event lighting.
How to Choose the Right Light Source?
✅ Socket type – A basic but key parameter. E27 (large screw), E14 (small screw), GU10 (twist-lock), G9 (compact pin) etc. The socket determines compatibility with your fixture.
✅ Light temperature – 2700 K = warm white (cozy), 3000–4000 K = neutral white (work), 6000 K = cool white (technical). RGB = selectable colors for ambiance and fun.
✅ Luminous flux (lumens) – The higher the lumens, the brighter the light. 400–800 lm is sufficient for living rooms; for kitchens or workspaces, aim for 800–1500 lm depending on size.
✅ Power & efficiency – LEDs consume minimal energy while delivering strong light. Look at watts, but also efficiency in lm/W (e.g., 100 lm/W is excellent).
✅ Dimming – Need adjustable brightness? Choose bulbs labeled "dimmable". Smart variants can be dimmed easily via mobile app or scenes.
✅ Design & style – For open fixtures, consider the bulb’s appearance. Decorative styles with visible filaments (Retro, Globe) add character.
✅ Smart features – Smart LEDs offer easy control, timers, temperature and color adjustment, and smart home integration (Tuya, Zigbee, Wi-Fi).
Recommended Light Sources
| Model | Description |
|---|---|
| ULTRA ECONOMY LED 210lm/W E27 | Extremely low energy consumption with high light output. Energy class A. |
| PARATHOM GU10 120° 4000K |
LED bulb 230V with GU10 socket – 4000K
|
| PARATHOM LED E27 GLOBE 200 | Opal LED bulb with E27 socket and 200 mm diameter. |
| PARATHOM SMART GLOBE E27 RGBW | Smart LED Globe bulb with E27 base, controllable via app: LEDVANCE SMART+ WiFi (min. Android 4.4 or iOS 9.0), Google Assistant, or Amazon Alexa. RGBW color control. Adjustable white light from 2700K to 6500K. WiFi-enabled. |
| PARATHOM GX53 |
LED light source with GX53 base.
|
Frequently Asked Questions (FAQ)
What’s the difference between GU10 and E27 sockets?
GU10 is a twist-lock socket with pins, mainly used in spot and ceiling lights. E27 is a screw socket for standard lamps. Each fixture requires a matching socket – they are not interchangeable.
Can I dim any LED bulb?
No, only LEDs marked “dimmable” are compatible with dimmers. For smart bulbs, dimming is available via app. Using a non-dimmable LED with a dimmer can cause flickering or damage.
How much energy do I save with LEDs compared to halogens?
LEDs use up to 80% less energy than halogens, last up to 25× longer, and produce less heat. The investment pays off in just a few months.
How do I choose the right light temperature?
2700K = warm light for bedrooms and living rooms. 3000–4000K = neutral light for work and kitchens. RGB = creative color effects for mood or fun.
What if the fixture is enclosed and not well ventilated?
Choose LED bulbs with low wattage and quality bodies (glass or ceramic) that can withstand higher temperatures. Avoid cheap plastic LEDs in enclosed fixtures.
Choose Rendl light sources and illuminate your space effectively, stylishly, and smartly – just the way you like it.