Colour Temperature - With conventional lamps, choosing the “colour of light” emitted by a lamp was not a choice that was generally made.

All you have to do is screw in the bulb, and flip the switch to toggle between 100%, 40%, and 10% brightness. The best after-sales service】 The best after-sales service: We guarantee 2 years of unconditional warranty.

This worked better in the past as most lights were incandescent and the variation in efficiency between different manufacturers was small. Another way of expressing this unit is as lumens per square metre, as 1 lux unit equals 1 lumen per square metre, or 1 lx = 1 lm/m2.

Another tip for creating the perfect cosy atmosphere is to have more lamps with weaker lumens and have them lit at the same time. Use warmer colored light bulbs marked 2700-3000K for your bedroom lamp, or consider dimming your lights as you wind down for the evening. In addition to standard general service light bulbs, you can also find a lot of other options in the market. Even though there are large variations between the different types, the same potential hazards need to be considered. If you want something dimmer, go for fewer lumens; if you prefer brighter light, look for more lumens.Etsy’s 100% renewable electricity commitment includes the electricity used by the data centres that host Etsy. That’s why you need to think before you choose your lighting and be careful to supply them with the right light bulbs if you want to achieve the best results. A lumen is a measure of the amount of brightness of a lightbulb -- the higher the number of lumens, the brighter the lightbulb. We are renowned for our excellence in product packing meaning your bulbs arrive in perfect condition. You can think of this as similar to miles-per-gallon in a car, as a higher lm/W means higher efficiency and lower running costs compared to similar but less efficient models.

wide clamp that can opens to 5cm will take up very little space on the desktop and make the table more tidy; The whole body is about 50cm long, of which gooseneck is about 38cm long, of which usb cable is approx 150cm long. This durable, E27 compatible lamp exudes an industrial charm, replicating the look of concrete without the weight. If you have any questions or would like to discuss your lighting needs, please feel free to request a free consultation online.A 100w bulb will generate more heat, which might melt or burn other parts of the lamp, such as any plastic or the lampshade. They appreciate the variable brightness and twin light tone, as well as the ability to angle it to suit their needs.

You will want to factor in your specific application and the type of fixture you have to ensure you select the proper bulb for your home. Light sources within this temperature range are well suited for functional and general lighting in most rooms such as kitchens, halls and living rooms. LEDs are available in warm colors (low k) to match the yellowish light of incandescent bulbs, but you can also choose cooler colors (high k) with whiter or bluer light. A 60W incandescent bulb will put out 800 lumens, but an equivalently bright CF bulb only uses about 15W. There are a number of factors that lead to the lamp's maximum wattage, including the internal wiring, the materials the shade and harp are made out of, etc.

This project is design to save the electricity, saving costs and it also makes the user feel more comfortable and consuming energy. The candela (cd) is the standard unit of luminous intensity or brightness of a light in a specific direction. Therefore, when PIR had detect presence of human, the voltage from power supply (+9V) can flow through the circuit.