Ningbo Maxree Lighting Co.,Ltd |
|
R39-3W
Reflector LED Bulbs
Energy saving small size SMD led reflector bulb 3W 2835SMD leds
250-280lm warm white/natural white/cool white, AC220-240V,replace
25w traditional bulb
Specification:
Item NO. | R39-3W |
---|---|
Power (W) | 3W |
Voltage(V) | AC220-240V |
Colour Temperature (K) | WW: 2700-3500k NW: 3500-5000K CW: 5000-7000K |
Light source | super bright 2835 SMD leds |
Colour Rendering Index(Ra) | Ra>80 |
Luminous flux(lm) | 250-280lm |
Beam angle | 180 degree |
Lamp Base | E14 |
Material | Ceramics +glass cover |
Lifetime(Hrs) | 50,000Hrs |
Dimension(mm) | 39*70mm |
Replace halogen lamp | 25w |
SMD led global light bulbs ,SMD led candle light bulbs ,SMD led chandelier light bulbs ,SMD led SMD led SMD led candle light bulbs ,SMD led chandelier light bulbs SMD led,G4,G9,G24 plug light bulbs ,SMD LED cabinet light bulbs ,LED reflector R39,R50,R63 light bulbs ,Led filament light bulbs, SMD led spot light bulbs ,COB led down /ceiling lights ,COB led G4/G9/GU10/MR16/E14/E27 light bulbs ,COB led spot light bulbs ,COB led manufacturer ,LED T5,T8 tube lights ,COB led PAR/AR111 light bulbs ,COB led lamp ,COB led bulbs ,COB led global bulbs ,COB led candle bulbs ,COB led G24 PL light bulbs
Ningbo Maxree Lighting Co.,ltd, SMD led light manufacturer , COB led light manufacturer ,China ,Ningbo
1. COB, (Chips on Board) , multi LED (light emitting diode) chips
are packaged together as one lighting module. When it light up, it
looks like a lighting panel. The greatest power densities on the
smallest space are often the basis for unique selling points of
various products on the market. These criteria can be realized by
the COB technology (Chip On Board). Direct contacting of the
semiconductors (LEDs) on PCBs allows for optimal thermal
management, high packaging density and thus long-lasting and
high-performance COB LED modules.
2. COB technology will allow the LED modules to be clusters on the
circuit boards. Chips are protected and mounted directly on the
circuit board. The LED dice from the wafer and places them by die
and wire bonding processes directly on a printed circuit boards
(PCB). A polymer layer is placed above the dice and wires for
protection. Silicone is used as the polymer layer due to its low
photo degradation.
3. Compare to traditional lighting such as fluorescent lamp, as it
is super bright in a small size, it cause uncomfortable glare. In
case of no diffused optical lens used, such LEDs usually cause
glare and zebra strips . But when optical lens or cover used, it
will cause light loss when LED beam pass through this lens or
cover. While all the above disadvantages of traditional LED
lighting can be overcome with the advent of COB LED lighting. COB
LED is multi chips packaged, it can 10 times more increase lighting
area, so it avoid uncomfortable glare by the maximum extent.
4. Thermal management requirements for high brightness LEDs require
a very low thermal resistance system. This LED chip is processed by
means of a special procedure which is called “Die Bonding”. Here
the individual chips are placed on the PCB and using the Wire
Bonding method, connected to the contact surface of the PCB, which
are described as “Pads”. Gold wires in the micrometer range are
used for contacting. The COB technology allows for virtually
limitless freedom of scope for the PCBs and thus serves as the
basis for totally unique LED solutions.
5. COB technology provides significant advantages over surface
mount technology (SMT) components in the design with better
temperature management, smaller size of lumen packages and lower
production costs.
Ningbo Maxree Lighting Co.,Ltd is an ISO9001:2008 certified manufacturer of led lights, with
well-equipped testing facilities and strong technical force. Maxree
Lighting manufactured led lights since year 2008, mainly export to
UK, Germany, Australia , Netherland, Sweden, France ,Portugal
,Spain ,Italy ,Czech republic ,Slovakia ,Colombia, Mexico ,etc
Maxree factory plant size 5000sqm area and with 150 workers,8
production lines, professional light aging lines and machines.
Maxree is specialized in indoor and outdoor LED lighting research
and development ,design, manufacture and export to worldwide
markets .