The light distribution angle is 300°. By increasing the light-emitting portion, the appearance is more like a light bulb. The light colors are daylight (left) and light bulb (right).
The biggest feature of this LED bulb is that a small number of small light sources (LED packages) are arranged in a ring shape in the lampshade (hemispherical lampshade), and an open reflector and an open reflector are provided on top of the LED light bulb. Reflector (Figures 2, 3). 
The light is reflected by the first reflecting plate to the direction of the lamp head, and is reflected by the second reflecting plate to the side direction. Straight light diffuses on the resin lampshade. This gives a large light distribution angle.
The central portion of the LED package in a ring-shaped configuration has a relatively low temperature, so that electronic components that are not heat-resistant are disposed. The height of the aluminum alloy casing of the new product is lower than that of the original product, and the heat dissipation area is reduced. 
As shown in Figure 2, a portion of the light emitted by the LED package is emitted through the first layer of reflectors to the back side (in the direction of the lamp head, typically on the ceiling side). A part of the light passing through the opening portion of the first reflecting plate is laterally reflected by the second reflecting plate and is directed to the side direction. Straight rays that are not illuminated by the second reflector diffuse over the hemispherical shade. This achieves an "industry's highest" (the company) light distribution angle of 300° comparable to incandescent bulbs.
The heat dissipation has also been adjusted. Since the lampshade of the new product is larger than the original product, the surface area of ​​the aluminum alloy casing connecting the lamp cap and the lampshade, that is, the heat dissipation area is reduced. In view of the relatively low temperature in the central region of the LED package arranged in a ring shape, a driver IC that is not resistant to high temperature is disposed here to configure the circuit to reduce the influence of heat dissipation.
The light color is available in daylight (color temperature 6700K) and bulb color (color temperature 2800K). The brightness of daylight is 485lm, which is equivalent to a 40W incandescent bulb (light bulb is 390lm)*. *The brightness standard used the number of incandescent bulbs equivalent to 40W and 60W, but in 2010 the Japan Bulb Industry Association introduced the policy of unified use of lm.
Previously, the company's LED bulbs were centrally equipped with LED packages. Due to the strong linearity of the LED light, the light of the original product is difficult to diffuse to the back, and the light distribution angle is only about 120°. The difficulty is when it is used for a chandelier, etc., the front is bright and the corner of the room is dark.
The new product uses an open price, estimated at around 3,500 yen. In addition, the company is also planning to develop brighter products with brightness equivalent to 60W incandescent bulbs. However, due to technical issues such as heat dissipation, there is no specific production plan.
LED Tube light brightness is especially more soft and make it easy for people to accept.Using CREE, wafer chip as light-emitting semiconductor materials, placed in heat dissipation material, then add cooling casing and stable quality of professional power, protect the internal core, and common fluorescent lamp shape almost tubes, can replace ordinary fluorescent lamps and lanterns.
The Common Led tube light are T8.T5 Led tube light. Two sizes are 1 inches and 5/8 inches diameter. The length of the Led tube light are 60cm.90cm.120cm.
add cooling casing and stable quality of professional power, protect the internal core, and common fluorescent lamp shape almost tubes, can replace ordinary fluorescent lamps and lanterns
LED Tube
LED Tube,LED Lamp,Fluorescent Tube,LED Light Tube
Wenzhou Korlen Electric Appliances Co., Ltd. , http://www.korlenelectric.com