Desk lamps typically use one of four main types of light sources: incandescent bulbs, halogen lamps, fluorescent lights, or LED bulbs. Each type has its own set of pros and cons, and individual preferences can vary based on factors like color temperature and brightness. For optimal functionality, the light source of a desk lamp is often positioned horizontally or downward to ensure the majority of the light reaches the work surface.
When buying a desk lamp, it’s important to not only evaluate its optical performance but also assess other key features. A good desk lamp should be reliable and safe to use. To test this, follow these steps: "pull," "touch," "shake," and "feel." "Pull" involves checking if the power cord stays securely in place when unplugged or pulled out of the lamp body. It shouldn’t come loose. "Touch" refers to adjusting the lamp's various positions—there should be no noise during adjustments, and once set, the position must stay firm. "Shake" means placing the lamp in its least stable configuration and gently shaking the base to see if it remains steady. If it wobbles too much, it might fall easily. Finally, "feel" involves checking whether any heat-sensitive areas, like the lampshade, become dangerously hot after prolonged use (such as two hours). This helps prevent accidental burns.
For those looking to purchase a quality desk lamp, there are several reputable brands to consider. Some popular options include Philips (PHILIPS), Osram, MKD, Liangliang, Panasonic, GUANYA, OPPLE, Huaxiong/Yingke, long-term DP, and Donglian Lighting. [2]
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