Watch this voltage meter demo on Incandescent vs LED light's power usage.

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Incandescent Bulb vs LED part 1

Small Bulb

 
Incandescent Bulb vs LED part 2

Large Bulb

Understanding the terminology

T 10 NW 13 R 5050

T10 =

Base Type (small wedge)

PW = : NW = : WW =

Pure White: Natural White: Warm White

13 =

13 number of LEDs

R =

DC 12 Volt

5050 =

5050 LED size in mm.

 

For example

t10nw13r5050

T10 NW 13 R 5050

Understanding the terminology

BA 15S PW 18 R 5050

BA15S=

Base Type

PW = : NW = : WW =

Pure White: Natural White: Warm White

18 =

18 number of LEDs

R =

DC 12 Volt

5050 =

5050 LED size in mm.

 

S = Side terminal +

D= Double terminal +/-

 

For example

ba15S bulb

BA15S PW 18 R 5050