LED Bulb Models

We have 3W, 5W, 7W, 9W and 12W LED Bulbs with 12 different varieties for a single wattage category. For example, we have following varieties for 5W LED Bulb.

Type A: We use high quality high power SMD (Surface Mount) LEDs to produce this LED Lamps 

  • 5W - Pin Type - Day Light - with Silver Color Aluminium Heat Sink
  • 5W - Pin Type - Day Light -  with Gold Color Aluminium Heat Sink
  • 5W - Pin Type - Warm Light - with Silver Color Aluminium Heat Sink
  • 5W - Pin Type - Warm Light - with Gold Color Aluminium Heat Sink
  • 5W - Screw Type - Day Light - with Silver Colo Aluminium Heat Sink
  • 5W - Screw Type - Day Light - with Gold Color Aluminium Heat Sink
  • 5W - Screw Type - Warm Light - with Silver Color Aluminium Heat Sink
  • 5W - Screw Type - Warm Light - with Gold Color Aluminium Heat Sink


Type B: We use high quality low power SMD (Surface Mount) LEDs to produce this LED Lamps 

  • 5W Pin Type - Day Light - with White Color Plastic Cover
  • 5W Pin Type - Warm White - with White Color Plastic Cover
  • 5W Screw Type - Day Light - with White Color Plastic Cover
  • 5W Screw Type - Warm White - with White Color Plastic Cover

Note:

Day light means the Cool White light and Warm White means the yellow light which has light output equal to standard filament bulbs.


Technical Details of LEDs

The overall luminous efficacy of a source is the product of how well it converts energy to electromagnetic radiation, and how well the emitted radiation is detected by the human eye.

 Example 1:

Normal incandescent (filament bulb) 100W bulb have 1700lm, so efficacy = 17 lm/w

Light power        = total lumens/ maximum possible efficacy = 1700lm/(683lm/W) = 2.49W

Luminous efficiency        = equivalent light power/electric power = 2.49W/100W = 2.49%                                           

Lumens = (Radiant power in watts)*( maximum possible efficacy)*(lumens efficiency for the specific light)

                = 100W * 683lm/W * 2.49/100

                = 1700lm

 

Example2:

Input: AC 200-230V
Power: 5W
Luminous flux: 450LM
Bulb color: White

 As per the info above, 5W (LED) bulb have 450lm, so efficacy = 450/5 = 90 lm/w

Light power        = total lumens/ maximum possible efficacy = 450lm/(683lm/W) = 0.659W

Luminous efficiency          = equivalent light power/electric power

                                                = (0.659W/5W = 0.659 * 20)/(5 *20) = 13.18%

 Lumens = (Radiant power in watts)*( maximum possible efficacy)*(lumens efficiency for the specific light)

                = 5W * 683lm/W * 0.1318/100

                = 450lm

 More details at, http://en.wikipedia.org/wiki/Luminous_efficacy

Warranty Details

Thank you for purchasing a Bright® LED Energy Saving Lamp. We are confident that this lamp will brighten  your home whilst contributing to energy saving. This lamp is guaranteed against all defects for a period of        1 year from the date of purchase. The warranty is valid only if the relevant Serial Number is indicated on the Warranty Card along with rubber stamp of dealer and with the date of purchase.

 The warranty excludes breakages, damages caused by natural disasters, voltage surge, tampering (any repair or alteration has been carried) or negligent handling. It is important to switch off the lamp when voltage is low. Also avoid using this lamp during lightning and don’t use inside closed fittings. The lamp is not waterproof, so do not use it in places where moisture is likely to get in. Also it is not recommended to use this lamp as a dimmer.

Failure to comply with the above will make the warranty null and void.

 Serial Number: ………………………………………………………

 Date of Purchase:  …………………………………………………

 Dealer’s Name and Address: ………………………………….

 ………………………………………………………………………………

 ……………………………………………………………………………….

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                                             Inquiries :  0777- 829999