30W Compact Corn Bulb
A small commercial replacement route with E26, E27, E39 or E40 options.
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LED Corn Bulb Choices for Existing Fixtures
Before choosing an LED corn bulb, check the socket, circuit and room inside the old fixture. The lamp is rated IP20 as published, so the host luminaire also needs its own environmental check.
- Published 30W to 150W models with separate output ranges
- Base options that vary by model and power
- Type B direct-wire installation after ballast removal or bypass
Reuse with care
A lamp retrofit is a fixture-level decision
A corn lamp will screw into a socket only if the base matches. The circuit and housing must also suit the selected model.
VST publishes seven LED corn bulb models from 30W to 150W. The pages list 360° distribution, AC100–305V input and a Type B direct-wire method that requires the old ballast to be removed or bypassed. Small models can offer E26/E27/E39/E40 options; higher-power models list E39/E40. Check the actual socket, available diameter and length, reflector or enclosure, ventilation and environmental protection before comparing advertised HID equivalence. As an LED corn bulb supplier, VST can then identify a suitable sample and conversion scope for the fixture.
Base match
Check whether the socket is E26, E27, E39 or E40 and whether the selected power actually offers it. Do not choose from a family photograph.
Ballast bypass
The published Type B route connects to AC mains after the HID ballast is removed or bypassed. A qualified installer must own the wiring change.
Physical space
A corn lamp has side-mounted LEDs and needs clearance inside the existing reflector or enclosure. Compare dimensions and airflow before approving output.
Protection boundary
The published lamp is IP20. A covered or damp location requires a separately suitable host luminaire; the bare lamp is not a weatherproof fixture.
Retrofit support
Make the host fixture part of the quotation
An LED corn bulb manufacturer needs the socket, circuit and housing details before quoting a lamp for an HID retrofit. VST can match the proposed base and power to the measured host fixture.
Seven model pages
The 30W to 150W series provides published output ranges and dimensions for comparison. VST can shortlist the relevant power before a fixture-matched sample.
Electrical review
Socket and ballast information can be checked against the Type B route early. The installer still confirms the converted circuit, earthing and local electrical requirements.
Thermal discussion
Lamp length, reflector space and heat path affect whether an existing fixture can be reused. VST can compare the model dimensions with the host enclosure.
Model evidence
Published pages give input, output range, base, IP and direct-wire information. Ask which documents apply to the quoted model and market.
Packing and repeat supply
Keep the approved power, base, label and carton details with the order so a later replacement uses the same lamp configuration.
Lamp and fixture
What the corn lamp provides
The corn lamp is one part of the retrofit. The old fixture determines the socket, available space and wiring work.
A VST LED corn bulb has LED arrays around a multi-sided body, an aluminum-alloy structure and a screw base. The published series lists 120–135 lm/W, 360° distribution, CRI ≥80 and IP20 on the lamp itself. It is not a complete high-bay luminaire. Its Type B direct-wire method needs the existing ballast removed or bypassed, and the old socket and housing must accept the lamp’s actual base and dimensions. Evaluate the converted fixture, not just lamp wattage or a suggested HID equivalent.
Published corn lamps
Choose a model after measuring the host
VST's LED corn bulb factory listings give power, output and base options by model. Higher-power lamps have fewer base choices.
60W Retail High Ceiling
More output for a compatible higher ceiling while retaining small-base options.
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80W HID Fixture Retrofit
A published 250W metal-halide comparison for suitable existing housings.
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120W Warehouse Lamp
A larger E39/E40 option where clearance and thermal space support it.
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150W Facility Retrofit
The largest published corn model in this range, requiring a careful host check.
View Product Selection Controls
Four retrofit gates
Check the socket, bypass wiring, housing clearance and useful light in the converted fixture.
Screw base
A socket name must match the exact model’s available base and provide secure mechanical engagement.
Direct wire
The old ballast must be removed or bypassed for the published Type B route; the installer verifies the final circuit.
Thermal clearance
Leave enough room around the lamp for its length and side-emitting body inside the host reflector or enclosure.
Useful light
Compare the model’s lumen range and the real fixture geometry rather than equating old HID wattage with final illuminance.
Corn lamp construction
What changes inside an HID fixture
The LED faces, heat path and screw base each depend on space and conditions inside the host fixture.
Light source
Multi-sided LED panels
LED packages cover several faces of the corn lamp, allowing broad distribution within a suitable host reflector. A published output range depends on model and configuration; the side LEDs alone cannot predict useful light on a warehouse floor. Compare the selected model with the mounting height and a lighting plan if the task has a target level.
Thermal path
Aluminum-alloy body
The internal structure helps move heat away from the LED panels. Its effect depends on operating conditions and the space left by the original luminaire. A larger lamp squeezed into a closed or poorly ventilated housing is not a sound substitution. Check lamp dimensions and the host fixture’s allowable use before installation.
Connector
Screw base
The screw base secures the lamp to the host socket and completes its electrical interface. Published base choices change across the range: E26/E27/E39/E40 may be offered on lower-power models, while 100W and above list E39/E40. Verify the actual ordered base and socket condition before a sample is fitted.
Company context
Supply and cooperation in view
These videos introduce VST and its customer relationships. Use the lamp pages for electrical and dimensional data.
VST overview
The company video introduces VST's lighting work. For the base, wiring, output and IP rating, use the selected corn lamp page and the fixture conversion plan.
Customer view
The customer video shows a working relationship. A corn lamp still needs to be checked in the specific HID fixture you plan to convert.
Applications
Where the old fixture can be reused
The existing socket, wiring and housing set the limits for each conversion.
Warehouse aisles
An open high-bay housing above storage aisles may accept a corn lamp if the socket and converted circuit match. Check the E39 or E40 base where required, reflector depth, lamp length, ventilation and mounting height. VST can compare published models and provide a sample for the measured fixture.
Parking structures
A covered parking area needs more than a compatible socket. The published lamp is IP20, so check the outer fixture's protection, ballast bypass, clearance and service access. VST can discuss model dimensions once the full host conditions are known.
Factory production halls
A high-ceiling work area may need broad light from an existing reflector. Leave enough space around the LED body and check the task light level, mounting height, base and thermal clearance. VST can compare published output ranges and provide model data for a trial.
Indoor sports halls
An indoor high-bay fixture may be suitable where ceiling clearance and maintenance access are known. Check the socket, converted wiring, impact protection and required light level for the playing area. VST can shortlist a power option and support a sample before several courts are converted.
Commercial atriums
An indoor atrium may reuse an open fixture if the lamp fits and its 360° output works with the reflector. Check the base, housing shape, glare from normal viewpoints and service access. VST can compare lamp dimensions and supply a sample for visual assessment.
Before you convert
Check the Host Fixture for an LED Corn Bulb
Send photos of the HID lamp and fixture, socket type, ballast and wiring details, inside dimensions, mounting height, environment, quantity and market. As your LED corn bulb supplier, VST can recommend a published lamp, list the trial checks and quote the exact base and model.
Technical Detail
Corn Lamp Specification and Conversion
Read the published lamp data alongside the dimensions and wiring of the old fixture.
| LED corn bulb model data — Published model | Power | Luminous flux | Base options | Dimensions |
|---|---|---|---|---|
| VST-CL-30W | 30W | 3,600–4,050 lm | E26/E27/E39/E40 | D93 x H195mm |
| VST-CL-40W | 40W | 4,800–5,400 lm | E26/E27/E39/E40 | D93 x H195mm |
| VST-CL-60W | 60W | 7,200–8,100 lm | E26/E27/E39/E40 | D93 x H205mm |
| VST-CL-80W | 80W | 9,600–10,800 lm | E26/E27/E39/E40 | D93 x H229mm |
| VST-CL-100W | 100W | 12,000–13,500 lm | E39/E40 | D93 x H241mm |
| VST-CL-120W | 120W | 14,400–16,200 lm | E39/E40 | D93 x H265mm |
| VST-CL-150W | 150W | 18,000–20,250 lm | E39/E40 | D93 x H338mm |
| Shared published corn-lamp values — Input | Wiring | Beam | Lamp IP |
|---|---|---|---|
| AC100–305V, 50/60Hz | Type B direct wire; ballast removed or bypassed | 360° | IP20 |
Discuss power, available base, CCT and labels for the exact model. The Type B direct-wire method and IP20 lamp rating remain fixed planning boundaries unless a different documented construction is supplied.
At VST’s LED corn bulb factory, the LED faces, aluminum housing, driver and screw base follow the selected model. Electrical, output, temperature, aging, appearance and packing checks should be evaluated against the approved order configuration.
Isolate power. Have a qualified installer remove or bypass the old HID ballast, verify the final AC supply and socket condition, then check lamp clearance, host-luminaire protection, support and heat space. Follow local code before energizing.
Retrofit Cooperation
Comments on HID Conversion
Customers describe socket, model and repeat-order details they checked.
Ordering with VST
Corn Lamp Order Questions
Agree on the lamp model and required fixture conversion before discussing order terms.
Yes. A sample can be arranged after the socket, wiring conversion and housing dimensions are known. The installer should check the actual converted luminaire. Any credit of sample charges against a later bulk order must be agreed beforehand.
The starting quantity depends on power, base, volume and packaging. A lower-value standard model may begin around 100 pieces in discussion; higher-power fixtures may justify a lower amount where appropriate. The exact MOQ belongs in the quotation.
VST can discuss private labels and export cartons for a confirmed model. Provide compliant artwork, base and voltage labeling requirements, carton marks and market details. A deeper product change can involve separate engineering or tooling cost.
The standard corn lamp route usually needs 2–3 weeks in production after the model is approved. A limited modification normally needs 3–4 weeks; deeper work requires roughly 4–6 weeks. Freight is not included.
No. The term must be tied to the selected corn model and conditions of use. VST commonly discusses either three or five years for regular lighting; the approved quotation states what applies.
For a suspected lamp defect, provide the model, order, installation context and clear photos or video. Once the product issue is checked, VST can discuss replacement items shipped separately or with a future order.
Product Questions
Corn Lamp Retrofit Questions
These answers cover the old fixture, ballast and lamp clearance for an LED corn bulb retrofit.
The published VST Type B method requires the ballast to be removed or bypassed. A qualified installer must identify the old circuit, make the permitted conversion and verify the final AC input. Do not energize the lamp on an assumed ballast-compatible route.
| Published power | Base choices | Check |
|---|---|---|
| 30W–80W | E26/E27/E39/E40 | Confirm ordered base |
| 100W–150W | E39/E40 | Check larger socket |
Measure the available inside diameter and length of the host fixture and compare them with the selected model page. Allow for the socket, reflector and thermal clearance. The 150W page lists D93 × H338mm, which can rule out a shallow housing.
No. IP20 describes the lamp as published. A damp, dusty or exposed site needs a separately appropriate host luminaire and installation design. An outer cover also changes the available heat space, so protection cannot be judged from a lamp photo alone.
No. A published HID comparison is only a starting reference. The actual useful light depends on the old fixture, reflector, mounting height, distribution and the work area. Compare model lumen range and a layout or trial before committing to a large conversion.
The multi-sided LED body emits around the lamp, but the reflector and any enclosure redirect or block part of that output. Inspect the host fixture geometry and visual task. A sample helps reveal glare or wasted light that a bare-lamp specification cannot show.
Keep the lamp model, base, converted wiring, host photos, dimensions and light result. The installer should sign off the electrical conversion. This gives later project phases a reference when fixtures differ from the trial location.