How to Take Measurements
1. 1 Select type
There are many types of light bulbs, such as tungsten filament bulbs, tungsten filament halogen bulbs, metal halogen bulbs, LED bulbs, xenon bulbs, energy-saving lamps, etc. Most home decorations will use LED bulbs, fluorescent lamps, halogen lamps, and energy-saving lamps. light bulb.
2 Select brightness
Brightness is the rate of light energy emitted by a light source or the flow rate of light. Lumens is a unit of measurement for measuring the rate of light output. The light output released by a 400-lumen LED bulb is equivalent to that of a 35-watt incandescent bulb, but its consumption is The power is only 6.3 watts. Generally speaking, if it is an LED light bulb, 1 square meter of space requires 1-3 watts of light bulbs. Consumers can choose according to actual needs.
3 power consumption
CFLs use far less energy than traditional incandescent bulbs, so you can choose based on light output (lumens) rather than power consumption (watts), which is a unit of measurement for power consumption.
4 color temperature
In our eyes, the light emitted by most light sources is generally called white light. In fact, the white light emitted by different light sources appears to the naked eye to have different colors depending on the color temperature. The more bluish the light color, the higher the color temperature; the more reddish the light color, the lower the color temperature. Bulbs with more of the red spectrum produce a milder light, ideal for relaxation or general lighting, while cooler-toned lights are suitable for work or for focused light.
5 Lamp holder size
Common lamp holder sizes are E17 and E14. E17 is a lamp holder with a screw diameter of 17 mm. It is generally used for household use, while E40 is rare or even non-existent in ordinary households. Since the size of each lamp holder is different, be sure to get it before purchasing. Know the size of the lamp head you need so that it will not be inoperable after purchase. It is recommended to bring the old light bulb with you when purchasing to prevent the problem of discrepancy in the size of the lamp head after purchase.
