Keystone T5 Electronic Program Start Ballast, 120-277V For (2) F28T5 Lamps

SKU: KTEB-228HE-UV-PS | Ordering Code: KTEB-228HE-UV-PS

Keystone KTEB-228HE-UV-PS T5 Electronic Program Start Ballast, 120-277V For (2) F28T5 Lamps

Prices correct at 8:54 AM, 4/24/2026 and are subject to change

$49.99each

Add to Cart

Save to BulbTrack

Quickly and easily order the products you have purchased in the past or plan to order in the future by simply adding them to your My BulbTrack page.

Once a product has been added to My BulbTrack, ordering it is as easy as entering the quantity or clicking on the product image. You can even add notes to each product to record where it is used in your business or home.

Order within the next 7 hours 5 minutes to ship today

Add 4 to your cart to get free ground shipping *

Product Highlights

Ignites up to two T5 lamps

Product Description–

Keystone T5 Electronic Program Start Ballast, 120-277V For (2) F28T5 Lamps

Ignites the following lamp combinations:

1 or 2 F28T5/HE
1 or 2 F21T5/HE
1 or 2 F14T5/HE
1 or 2 F35T5/HE
Minimum Starting Temperature: 0ºF, -18ºC
Maximum Case Temperature: 158ºF, 70ºC
Meets FCC Part 18 (Class A) Non Consumer Limits
UL, cUL 935 Listed
Lamp End-of-Life Protected
Class P, Type 1 Outdoor
Type HL, Type CC

Product Documents

Manufacturer Spec Sheet

Full Specs–

Brand	Keystone
Input Volts	120/277
Input Watts	18-64
Number of Lamps	1/2
Ballast Factor	100-116
Length (in)	9.5

Width (in)	1.3
Height (in)	1
Power Factor	High
Lamps by Wattage	1x14W, 1x21W, 1x28W, 1x35W, 2x14W, 2x21W, 2x28W, 2x35W
Ballast Lamp Type	T5
Start Type	Program