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FAQ
- How much is the LED to shoot the light, color rendering index in general
- When used for commercial lighting best Ra is higher than that in 80, and this business will be less distortion, best can buy more than Ra90, of course the more than 90 manufacturers, basic no inventory, the price is more expensive. According to the different USES can choose appropriate color rendering index of different lamps and lanterns, as long as enough. Such as street light color rendering index is 30 or so with very well.
- Shoot the light and tube light have what distinction, that is better?
- LED lamp is embedded in the ceiling or wall, general lighting products is a kind of highly concentrated, usually it's light to the specified target position. Through light is used to emphasize important points. When working, due to the LED lamp produces high temperature, so the LED lamp when the choose and buy must choose the high quality product, otherwise it will produce safe hidden trouble. Now LED lamp is mainly used for all kinds of commercial space lighting and architectural decoration lighting, etc. At the same time to shoot the light is divided into low pressure and high pressure, proposal consumer had better choose low voltage lamp, due to low pressure lamp life relatively longer, the higher light efficiency. Shoot the light of the general lighting power factor to decide, good lamp power factor can reach 0.99, but the price is much expensive.
- 18 w changed other power drive not bright LED lamp, what reason be?
- VF values of each lamp bead is about 3-3.4 V, so a series of at least 18 to 54 V, general situation, the output voltage won't do more than 50 V, because it is not safe (of course, the use of isolation was not drive), so will make it 2 and 9 series way for more than 27 V (voltage), but not see your driver clear this After a few short also cannot do 3 * 18 w, because your lights must be 1 w (300 ma), rather than a 3 w (600 ma), current headlight bead hold, within a few hours it broke
- How to adjust the light in the home
- See shoot the lamp wattage: giant shoots the lamp holder is every foot of W, 1 W, 3 W are common. Many small factory in order to compress costs, low-end can choose less than W lamp holder, nominal 1 W, some will use 0.75 W, even 0.5 W lamp holder.
- With current meter how to detect the led lamp lights, bad
- Can find a lithium battery (or 3 section dry cell in series), series a hundreds of the resistance, to the led lamp bead, try on the reverse, if the light is good, light is not bad
- The PAR value of lamps and lanterns is what mean?
- The PAR value of lamps and lanterns is parabolic shape of the lamp. Said is the shape of the lamp. For example, PAR20, PAR30 PAR38 said maximum overall diameter size. Such as PAR38, maximum overall diameter size of 38 (1/8) * * 25.4 120.0 mm material 38 in Britain is divided into units, the conversion relation is as follows: 1 the points = 1/8 "1 inch = 25.4 mm.
- Led outdoor lamp on Ⅰ p65 what meaning be
- IP65 dust said this product is 6 grade, waterproof rating to 5, how kind level of dustproof, waterproof, following detailed answer. What is the IP protection class IP (IP for Ingress Protection, abbreviation), IP Protection grade system is made up of IEC (International company Technical appointed the draft. Will be in accordance with its lamps and lanterns prevent outside content invasion, waterproof, dustproof, moisture proof the characteristics of classification. Here refers to foreign object contains tools, man's fingers are not in contact with the lamps and lanterns of charged part, in order to avoid electric shock. IP protection grade is composed of two Numbers, the first number said dust of lamps and lanterns, the level of the external things out; Second number said lamps and lanterns of moisture proof, waterproof airtight degree. The greater the number, said the higher degree of protection.
- The sitting room condole top LED lamp wattage is commonly? How many watts of the LED lamp have?
- Are generally 1 to 3 w to see your space, to shoot the light 3 w, depends on your ceiling is a few meters
