# Understanding the Date Stamp

### ELECTRONIC BALLAST

Find the Ballast version above the UPC code on the product label.

### Six Digit Date Code

#### Example: 093602

- The first 2 digits (09) refer to the year of manufacture, 2009
- The second 2 digits (36) refer to the week of manufacture

### Fourteen Digit Date Code

(Ballasts with “Version A_” indicated on the label)

#### Example: 27594P14030461

- The 7th and 8th digits (14) refer to the year of manufacture, 2014
- The 9th and 10th digits (03) refer to the week of manufacture

### Five Digit Date Code

(Ballasts with “Version D_” indicated on the label)

#### Example: 13491

- The first 2 digits (13) refer to the year of manufacture, 2013
- The second 2 digits (49) refer to the week of manufacture

### Five Digit Date Code

(Ballasts with “Version P_” indicated on the label)

#### Example: J1142

- The first 2 digits (11) refer to the year of manufacture, 2011
- The second 2 digits (42) refer to the week of manufacture

### HID BALLAST

Find the HID Ballast version above the Cat. No. on the product label.

### Seven Digit Date Code

#### Example: 112007H

- The first 2 digits (11) refer to the week of manufacture
- The next 4 digits (2007) refer to the year of manufacture

### Ten Digit Date Code

(Ballasts with “Version B_” indicated on the Unit label)

#### Example: E231318212

- The next 2 digits (23) refer to the week of manufacture
- The following 2 digits (13) refer to the year of manufacture, 2013

### Ten Digit Date Code

(Ballasts with “Version P_” indicated on the Unit label)

#### Example: M090307703

- The next 2 digits (09) refer to the year of manufacture, 2009
- The following 2 digits (03) refer to the month of manufacture, March

### FLUORESCENT EMERGENCY BALLAST

### Four Digit Date Code

#### Example: 4313

- The first 2 digits (43) refer to the week of manufacture
- The next 2 digits (13) refer to the year of manufacture

### LED EMERGENCY BALLAST

### Six Digit Date Code

#### Example: 162100

- The first 2 digits (16) refer to the year of manufacture, 2016
- The second 2 digits (21) refer to the week of manufacture

### DRIVERS

### Six Digit Date Code

#### Example: 093602

- The next 2 digits (09) refer to the year of manufacture, 2009
- The following 2 digits (36) refer to the week of manufacture

### ComboDrive/SmartDrive LED LAMPS

### Four Digit Date Code

#### Example: 1530

- The first 2 digits (15) refer to the year of manufacture
- The next 2 digits (30) refer to the week of manufacture

### DirectDrive LED LAMPS

### Four Digit Date Code

#### Example: 1606

- The first 2 digits (16) refer to the year of manufacture, 2016
- The second 2 digits (06) refer to the week of manufacture

### T5/T5HO/T5HE LED LAMPS

### Four Digit Date Code

#### Example: 1710

- The first 2 digits (17) refer to the year of manufacture, 2017
- The second 2 digits (10) refer to the month of manufacture

### SMARTDRIVE HID LED LAMPS

### Four Digit Date Code

#### Example: 3516

- The first 2 digits (35) refer to the week of manufacture
- The next 2 digits (16) refer to the year of manufacture, 2016

### DIRECTDRIVE 15-54W HID LED LAMPS

### Four Digit Date Code

#### Example: 1612

- The first 2 digits (16) refer to the year of manufacture, 2016
- The second 2 digits (12) refer to the week of manufacture

### DIRECTDRIVE 80-100W HID LED LAMPS

### Four Digit Date Code

#### Example: 1612

- The first 2 digits (16) refer to the year of manufacture, 2016
- The second 2 digits (12) refer to the week of manufacture