GE LED Tube Type A T8 4ft 18W 4000K covRguard - 93135947-LED18ET8/G/4/840CVG

GE LED Tube Type A T8 4ft 18W 4000K covRguard – LED18ET8/G/4/840CVG

The GE LED18ET8/G/4/840CVG Type A LED Tube is a 4ft-foot, 18W bare-lamp-wattage T8 replacement lamp rated at 2,500 initial lumens on a Normal Ballast Factor (0.88 BF) fixture, in 4000K color temperature. It ships with a factory-sealed covRguard® polycarbonate sleeve bonded to the glass tube, giving it shatter protection and NSF Food Zone acceptance that the bare-glass version of this wattage and CCT does not carry. As a Type A lamp, it runs on the fixture's existing electronic fluorescent ballast — no rewiring is required, but actual output varies with the ballast's factor, and the fixture's ballast must be on GE's compatibility list before this lamp is installed.

Technical Specifications

Product Overview

GE's Type A T8 tubes are built to run on the fixture's existing electronic fluorescent ballast, so there is no rewiring and the existing sockets are reused as-is. That convenience comes with a trade-off the ballast-bypass Type B line doesn't have: actual system wattage and lumen output shift with the ballast's factor, from 17W/2,100 lm on a Low BF (0.78) ballast up to 26W/3,250 lm on a High BF (1.18) ballast, so the same lamp performs differently depending on which ballast it's paired with.

Because the lamp depends on the existing ballast, GE maintains a published compatibility guide (www.LED.com/LEDTUBES-ballast-compatibility) that should be checked against the fixture's ballast model before ordering — an incompatible or aging ballast can affect starting, flicker, or lamp life in ways a ballast-bypass lamp would never encounter.

The covRguard® sleeve on this SKU is factory-bonded to the glass tube rather than a field-installed accessory, so it adds shatter containment and NSF Food Zone acceptance without a separate sleeve or fixture guard purchase — relevant for food prep, processing, or storage areas where a broken bare-glass tube would be a contamination risk.

Compatible Applications

• Retrofitting 4ft T8 fluorescent fixtures with a compatible electronic Instant Start or Program Start ballast, without rewiring
• Projects where minimizing labor/installation time matters more than eliminating the ballast as a future maintenance item
• Damp-location fixtures — the tube itself is Damp Location rated, though the fixture's own rating still governs the installation
• Food processing, prep, or storage areas requiring NSF Food Zone acceptance and shatter-contained lamps

Before Ordering – Verify

• Confirm the fixture's ballast is on GE's compatibility list (www.LED.com/LEDTUBES-ballast-compatibility) — unlike a Type B lamp, this one depends entirely on the existing ballast
• Confirm tube length — this is the 4ft (48 in MOL) version; do not substitute across lengths in this family
• Expect system wattage and lumen output to vary with the ballast's factor (Low/Normal/High) — quote using the fixture's actual ballast factor, not just the Normal BF figures
• If dimming is required, confirm the ballast is on the compatible dimming ballast list before specifying
• If the project depends on a utility rebate, verify this exact model number on the DLC Qualified Products List, not just the product family

Safety and Handling Guidelines

• Glass lamp — handle and store to avoid impact or breakage; do not use if the tube or coating is cracked
• De-energize the fixture before installing or removing the lamp
• No rewiring is performed for a Type A lamp, but confirm the existing ballast and sockets are in good condition before relamping
• Dispose of end-of-life lamps as non-hazardous waste per local regulations
• The covRguard® sleeve provides shatter containment but does not eliminate the need for careful handling during installation

Compliance

• UL Listed for LED lamps
• Damp Location rated (NSF Food Zone acceptance)
• DLC Qualified Products List — confirm this exact model at designlights.org before relying on it for a rebate

Ordering Information

• Order Code: 93135947
• Manufacturer Part Number: LED18ET8/G/4/840CVG
• Minimum order / carton quantity: 20 pcs
• Warranty: 7 years / 70,000 hours (manufacturer warranty applies)

For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.