diff --git a/l3config.js b/l3config.js
index ad1acc0..e448f7c 100644
--- a/l3config.js
+++ b/l3config.js
@@ -293,6 +293,12 @@ function initForm() {
 	let form = document.createElement('form');
 	l3configinput.appendChild(form);
 
+	const UNII1Channels = [36, 40, 44, 48];
+	const UNII2Channels = [52, 56, 60, 64];
+	const UNII2EChannels = [100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140];
+	const Channels5GHz = [...UNII1Channels, ...UNII2Channels, ...UNII2EChannels].map(chan => [chan.toString(), chan.toString()]);
+	const Channels2GHz = Array(13).fill().map((_, chan) => [chan.toString(), chan.toString()]);
+
 	const l3cfg = new L3Config();
 	l3cfg.addSection(new L3Section('gateway', 'meta',
 		new L3Input('Router Name','gatewayName', 'name', {type: 'search', placeholder: 'Router Name'}),
@@ -331,8 +337,14 @@ function initForm() {
 		new L3Input('DHCP Start Address','clientDHCPStart', 'dhcp_start', {type: 'text', maxlength: 15, placeholder: 'IPv4 Address, 10.XX.YY.10'}),
 		new L3Input('DHCP Number of Addresses','clientDHCPLimit', 'dhcp_limit', {type: 'number', max: 65535}),
 		new L3Input('Wifi ESSID','clientESSID', 'essid', {type: 'text'}),
-		new L3Input('Wifi 2.4 GHz Channel','client2GHZ', 'chan2ghz', {type: 'number', min: 1, max: 13}),
-		new L3Input('Wifi 5 GHz Channel','client5GHZ', 'chan5ghz', {type: 'number', min: 36, max: 140}),
+		new L3Select('Wifi 2.4 GHz Channel','client2GHZ', 'chan2ghz', {name: 'chan2ghz'}, [
+			['---', undefined],
+			...Channels2GHz,
+		]),
+		new L3Select('Wifi 5 GHz Channel','client5GHZ', 'chan5ghz', {name: 'chan5ghz'}, [
+			['---', undefined],
+			...Channels5GHz,
+		]),
 	));
 	l3cfg.addSection(new L3MultiSection('VLAN', function(idsuffix) {
 		return new L3Section('vlan', makeInput('vlanSectionName'+idsuffix, {type: 'number', min: 1, max: 4094, required: ''}),