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The right lighting isn't just about design. When you're buying lamps for the living room, bedroom, home office, hallway, balcony or renovation projects, it's important to check the technical specifications and intended use. Many models look similar in product images, yet the fitting, brightness, power supply and protection rating can differ significantly.
With LED lamps, the wattage mainly describes the power consumption, not the actual brightness. What really matters is the luminous flux in lumens (lm). For example, an LED lamp with 6 W can deliver 510 lm, while an older halogen lamp uses significantly more power. When choosing, you should consider lumens, colour temperature and beam angle together.
An E27 lamp won't fit into a GU10 fitting. Dimensions can also cause problems: a long ST64 filament lamp needs a light fixture with enough room inside the shade. With table lamps or pendant lights, you should also check whether the bulb will be visible and whether its shape suits the lampshade.
Not every indoor lamp is suitable for the balcony, patio or garden. An outdoor light should have an appropriate IP rating. IP44, for example, offers protection against solid objects of a certain size and splashing water, but it isn't automatically suitable for all weather conditions. Battery-operated lamps with an acrylic shade can be used flexibly, but they must not be submerged in water or exposed to persistent moisture.
For general lighting, lumens matter more than watts. Colour temperature is given in Kelvin:
A wide beam angle distributes light over a larger area. According to the product specifications, the Smart LED E27 lamp with ST64 shape delivers 470 lm, a 320° beam angle and adjustable white light from 2,700 to 6,500 K. This can be relevant for open lampshades and decorative lights.
Before buying, make sure the fitting and maximum power of the light fixture match. With a fixture that has an E27 fitting, the stated maximum wattage must not be exceeded. The Lameke Dome Floor Lamp has an E27 fitting and, according to the product description, is designed for bulbs up to 100 W. The Keli Straight Floor Lamp also uses E27, but according to the specifications it allows a maximum of 40 W.
GU10 lamps are usually reflector bulbs with two short contact pins. This fitting is not interchangeable with E27 or E14. If you plan to use smart bulbs later, check the correct fitting and installation depth when you buy.
Mains-powered lamps are suitable for fixed locations. Rechargeable table lamps and battery-operated lamps offer more flexibility, but need regular charging or battery changes. With smart lamps, check the Wi-Fi frequency, app support and compatible voice assistants. The Matter protocol can make integration into various smart home systems easier, but it doesn't replace checking the specific app and network requirements.
Why this product fits the profile: This compact table lamp is ideal for a bedside table, sideboard or desk, combining an E14 fitting with an integrated pen holder.
The specifications clearly state the fitting, maximum power of 25 W and that it is intended for indoor use.
White jade glass cover, iron frame and integrated pen holder; the E14 bulb holder remains replaceable.
Why this product fits the profile: This E27 bulb combines a visible filament look with app, voice and Matter control for indoor use.
The specifications list 4.9 W, 470 lm, E27, 2.4 GHz Wi-Fi and the supported smart home systems.
RGBW colour selection, dimmable white light from 2,700 to 6,500 K, timer and no additional hub required according to the product specifications.
Why this product fits the profile: For renovation work, the garage and DIY tasks, this mains-powered construction lamp comes with a height-adjustable tripod stand.
The tripod, protective grille and replaceable 400 W halogen bulb are listed as specific features.
According to the product description, approximately 8,850 lm, warm white light and flexible positioning for work areas.
Why this product fits the profile: This cordless rechargeable table lamp can be placed on a table, shelf or sideboard where there's no socket nearby.
The battery, USB charging and three-step touch dimmer are clearly specified; the lamp is intended for dry indoor spaces.
2 W LED, 210 lm, 3,000 K and compact dimensions of 21 cm height with a white metal housing.
We've put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations in force in the EU.
That depends on the room and the purpose. For a small table or accent lamp, a few hundred lumens are often enough. A task light or construction lamp needs significantly more light. Alongside the lumen value, the room size, lampshade and beam angle all affect the perceived brightness.
The lifespan depends on the model and is given in operating hours. The Smart LED E27 bulb states up to 15,000 hours, while the Aigostar LED clip lamp with battery claims a lifespan of 20,000 hours according to the product specifications. These are manufacturer figures and depend on factors including operating time, heat dissipation and power supply.
For a rough calculation: power in kilowatts × operating hours × electricity price. A 4.9 W LED lamp uses about 0.049 kWh over ten hours of operation. With rechargeable and battery-operated lamps, there are additional costs for charging or replacement batteries. So it's not just the purchase price that matters, but also the power consumption and how long you plan to use it.