9733;T8 LED BULBS TUBE (No Ballast) Retrofit Flourecent Tubes (4 Pack) 5000K Replace 36W fluorescent tubes by 18W LED. SAVE 50% on your electricity bill! Shadow reducing beam angle 260&deg; Long Life DLC DesignLights Consortium RATED 50,000 Hour. Reduce re-lamping time. Trusted UL LISTING [E470676]. Instant on, shatter proof, anti-glare frosted cover. High CRI 80+ Easy installation. Retrofit flourescent simply remove the ballast. Instructions emailed on sale.